Boss Audio Systems Onyx User`s manual

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Boss Audio Systems Onyx User`s manual | Manualzz

NX3000.2

NX2000.2

NX1600.2

Two Channel

MOSFET Car Audio

Amplifiers

NX3000.4

NX2500.4

NX2000.4

NX2800.1

NX1800.1

Four Channel

MOSFET Car Audio

Amplifiers

MonoBlock

MOSFET Car Audio

Amplifier

Congratulations on your purchase of a ONYX

Amplifier.

It has been designed, engineered and manufactured to bring you the highest level of performance and quality, and will afford you years of listening pleasure.

Thank you for making your choice for car audio entertainment!

U S E R ’ S M A N U A L page CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

r

Notes

Bridged Mode

Four Channel Mode

POSSIBLE REMEDY

MODEL into 4 Ohms into 4 Ohms minal of the RIGHT comes on when amplifier is ossover range

35Hz-160Hz

ONYX MOSFET Amplifier User’s Manual - page 13

4-Channel MOSFET Amplifiers

MODEL speakers.

hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The into 2 Ohms the head unit as high as possible (without distortion) and the amp input level as low as possible.

Min. speaker

Squealing noise

THD

Distorted sound.

Signal-to-noise ratio

Channel separation

Damping factor

Check for short circuits on the speaker leads.

Amplifier gets very hot.

Bass boost

Fuse rating

Engine noise

(static type) from power cables.

Engine noise ground

ONYX MOSFET Amplifier User’s Manual - page 19

U S E R ’ S M A N U A L page CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Introduction

With the ONYX MOSFET amplifier series, we are introducing twelve new amplifiers, all designed in the USA. This new series includes a two monoblock amps, three 2-channel, and three 4-channel amplifiers.

All ONYX models feature variable low pass crossovers and variable input gain controls. The two and fourchannel models also have high pass crossovers.

For further flexibility in the use of a subwoofer, a 0/+9dB/+18dB Bass

Boost selector has been included on all amplifiers. You can control the subwoofer level with the remote level control module.

For flexibility in use in a variety of installations, the two- and four-channel models feature both line level (RCA) and high level (speaker output) inputs, and the monoblock models integrate a line out for system building.

understands that amplifiers are placed in many different kinds of installations, so we incorporated a very flexible system of controls in these amplifiers in order to help you integrate the amp into your system regardless of the nature of your input source.

What is included?

When first unpacking your new amplifier, please check first that the package contains all of the items below. If something is missing, contact the store where you purchased the amplifier.

• ONYX amplifier

•High input cable with connector

(2- and 4-channel models only)

• Remote subwoofer level control

• Four (4) mounting screws

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 2 ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14 r

Notes

Bridged Mode

Four Channel Mode

POSSIBLE REMEDY

MODEL into 4 Ohms into 4 Ohms minal of the RIGHT

Check for short circuits on speaker leads.

15-250Hz comes on when amplifier is subwoofer to the CH2(-) amplifier ter

(10" x 2

4-Channel MOSFET Amplifiers

MODEL speakers.

hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The into 2 Ohms

Min. speaker

Squealing noise

THD

Distorted sound.

Signal-to-noise ratio

Channel separation

Damping factor

Check for short circuits on the speaker leads.

Amplifier gets very hot.

Bass boost

Fuse rating

Engine noise

(static type) from power cables.

ONYX MOSFET Amplifier User’s Manual - page 19

U S E R ’ S M A N U A L page CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features

Your new ONYX amplifier features the following:

• Class A-B operation

• Bridgeable outputs

(except NX2800.1 and NX1800.1)

• Tri-Mode capable

(except NX2800.1 and NX1800.1)

• MOSFET PWM (Pulse Width

Modulated) Power Supply

• 2 Ohm stable stereo operation

with output power increase

(except NX2800.1 and NX1800.1,

which are 2 ohm mono stable)

• Thermal and speaker short

protection

• Soft turn-on circuit

• Remote turn-on/turn-off circuit

• Variable input gain control(s)

• Variable low pass crossover(s)

• Variable high pass crossover(s)

(except NX2800.1 and NX1800.1)

• Variable 0 to +18dB Bass Boost

• Chrome-plated RCA low level and

high level inputs

• LED power and protection

indicators

• Gunmetal aluminum heatsink

• Remote subwoofer level control

About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode r

Notes

Bridged Mode

POSSIBLE REMEDY

MODEL into 4 Ohms into 4 Ohms minal of the RIGHT

Check for short circuits on speaker leads.

15-250Hz comes on when amplifier is

ONYX MOSFET Amplifier User’s Manual - page 15 subwoofer to the CH2(-) amplifier ter

(10" x 2

4-Channel MOSFET Amplifiers

MODEL speakers.

hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The into 2 Ohms

Min. speaker

Squealing noise

THD

Distorted sound.

Signal-to-noise ratio

Channel separation

Damping factor

Check for short circuits on the speaker leads.

Amplifier gets very hot.

Bass boost

Fuse rating

Engine noise

(static type) from power cables.

ONYX MOSFET Amplifier User’s Manual - page 16

ONYX MOSFET Amplifier User’s Manual - page 19

U S E R ’ S M A N U A L page CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

Installation precautions

Before you drill or cut any holes, investigate your car's layout very carefully. Take special care when you work near the gas tank, fuel lines, hydraulic lines and electrical wiring.

Never operate the amplifier when it is unmounted. Attach all audio system components securely to prevent damage, especially in an accident.

Before making or breaking power connections in your system, disconnect the vehicle battery. Confirm that your head unit or other equipment is turned off while connecting the input jacks and speaker terminals.

If you need to replace the power fuse, replace it only with a fuse identical to that supplied with the amplifier. Using a fuse of a different type or rating may result in damage to your audio system or your amplifier which is not covered by the manufacturer's warranty.

Mounting the amplifier

1. Find a suitable location in the vehicle in which to mount the amplifier.

2. Make sure there is sufficient air circulation around the intended mounting location.

3. Mark the location for the mounting hole screws by positioning the amplifier where you wish to install it. Use a scribe or mounting screw, inserted through each of the amp's mounting holes, to mark the mounting surface.

If the mounting surface is carpeted, measure the hole centers and mark with a felt tip pen.

4. Drill pilot holes in the mounting surface for the mounting screws. Place the amplifier in position, and attach the amplifier to the mounting surface securely using screws.

SHOCK HAZARD! Do not open the case

of this product. There are dangerous voltages present within the unit. There are no user-serviceable parts within the unit.

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16 r

Notes

POSSIBLE REMEDY

MODEL into 4 Ohms into 2 Ohms into 4 Ohms

Check for short circuits on speaker leads.

15-250Hz comes on when amplifier is

15-1/8"

(10" x 2

4-Channel MOSFET Amplifiers

MODEL speakers.

hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The into 2 Ohms

Min. speaker

Squealing noise

THD

Distorted sound.

Signal-to-noise ratio

Channel separation

Damping factor

Check for short circuits on the speaker leads.

Amplifier gets very hot.

Bass boost

Fuse rating

Engine noise

(static type) from power cables.

ONYX MOSFET Amplifier User’s Manual - page 19

U S E R ’ S M A N U A L page CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

Connecting the amplifier

Before doing any wiring, look through this manual and identify the diagrams to follow for power, input and speaker connections for your particular installation. Be sure you understand all the connections before you proceed.

1. Connect the power ground terminal to the closest point on the chassis of the car. Keep this ground wire to less than 39" (100 cm) in length. Use 8 gauge (or heavier) wire.

2. Connect the remote terminal to the remote output of the head unit using

16 gauge (or heavier) wire.

3. Connect an empty fuse holder within

18" (45 cm) of the car battery, and run

8 gauge (or heavier) cable from this fuse to the amplifier location.

4. Check that the fuse holder is empty.

Then connect the fuse holder to the

"BATT+" connection on the amplifier.

5. If multiple amplifiers are being used in your system, either:

• Run a separate pair of cables from the battery and a chassis ground point to each amplifier. Each (+) cable must have its own inline fuse.

-or-

• Run a #4 cable from the fuse holder at the battery to a distribution block at or near the amplifier's location. Then run separate cables from the amplifier to this distribution block and to independent chassis ground points.

6. Connect all line inputs and outputs

(if used) using high-quality cables.

Connect all speakers, following the diagrams in this manual. Be sure to observe proper polarity to avoid audio phase problems.

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Don't misuse the level control!

Do not mistake the input level control for a volume control! It is designed

ONLY to match the output level of your audio source to the input level of your amplifier.

Do not adjust this input level to maximum unless your input level requires it.

Ignoring these instructions will result in an input overload to the amplifier, and excessive audio distortion. It can also cause the protection circuit to engage.

ONYX MOSFET Amplifier User’s Manual - page 5

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode r

Notes

POSSIBLE REMEDY

MODEL into 4 Ohms into 2 Ohms into 4 Ohms

Check for short circuits on speaker leads.

15-250Hz comes on when amplifier is

15-1/8"

(10" x 2

4-Channel MOSFET Amplifiers

MODEL speakers.

hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The into 2 Ohms

Min. speaker

Squealing noise

THD

Distorted sound.

Signal-to-noise ratio

Channel separation

Damping factor

Check for short circuits on the speaker leads.

Amplifier gets very hot.

Bass boost

Fuse rating

Engine noise

(static type) from power cables.

ONYX MOSFET Amplifier User’s Manual - page 19

U S E R ’ S M A N U A L page

CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low Level Input Wiring

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!

MonoBlock Amplifiers

NX1800.1

NX2800.1

Remote

Subwoofer Level Control

L +

L –

GND

R+

R –

L

INPUTS

100mV-2V

2V-8V

INPUT

SENSITIVITY

MIN MAX

INPUT

LEVEL

R

0 +18

BASS

BOOST

45Hz 90Hz

LOW PASS

FREQ

LOW PASS

FULL RANGE

CROSSOVER

MODE

SUBWOOFER

LEVEL

CONT ROL

POWER

PROTECTION

+

SPEAKER

FUSES

+1 2V GND RE M

POWER CONNECTIONS

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

2-Channel MOSFET Amplifiers

MODEL into 4 Ohms into 2 Ohms into 4 Ohms

4-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Signal-to-noise ratio

Channel separation

Damping factor low pass high pass

Bass boost

Fuse rating

Dimensions:

All specifications subject to change without notice.

ONYX MOSFET Amplifier User’s Manual - page 19

U S E R ’ S M A N U A L page

CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

Low Level Input Wiring

NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!

2-Channel Amplifiers

NX3000.2

NX2000.2

NX1600.2

Remote

Subwoofer Level Control

L +

L –

HIGH LEVEL

INPUTS

GND

R+

R –

L

MAX

INPUTS

2V-8V

100mV-2V

INPUT

SENSITIVITY

MIN

INPUT

LEVEL

+18 90Hz 500Hz HIGH

PASS

0

BASS

BOOST

45Hz

LOW PASS

FREQ

50Hz

FREQ

LOW PASS

HIGH P ASS

FULL RANGE

CROSSOVER

MODE

SUBWOOFER

LEVEL

CONT ROL

R

POWER

PROTECTION

+

L

+

R

B R I D GE D

SPEAKER CONNECTI ONS

FUSES

+1 2V GND RE M

POWER CONNECTIONS

To Audio Outputs of head unit or signal processor

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6 ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2 -3/16 " x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

Notes

ONYX MOSFET Amplifier User’s Manual - page 19

U S E R ’ S M A N U A L page CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!

4-Channel Amplifiers

NX3000.4

NX2500.4

NX2000.4

To FRONT

Audio Outputs of head unit or signal processor

Remote

Subwoofer Level Control

GND

HIGH L EVEL

INPUTS

CH

1

+ 1

INPUTS

CH

3

CH

4

100mV-2V 2V-8V MIN

MAX

100mV-2V 2V-8V

CH1/2

CH3/4

INPU T

SENSITIVITY

MIN

INPU T

LEVEL

0

MAX

0

+18 90Hz 500Hz

LOW

PASS

45Hz

BAS S

BOOST

+18

LOW PASS

FREQ

50Hz

HIGH PASS

FREQ

90Hz 500Hz

FULL

CROS SOVER

MOD E

LOW

PASS

45Hz 50Hz

FULL

HIGH

PASS

HIGH

PASS

SUBWOOFER

LEVEL

CONT ROL

POWER

PROTECTION

+

CH1

+

B R I D GE D

CH2

+

CH3

SPEAKER CONNECTI ONS

+

B R I D GE D

CH4

FUSES

+1 2V GND RE M

POWER CONNECTIONS

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L page

CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!

2-Channel Amplifiers

NX3000.2

NX2000.2

NX1600.2

Remote

Subwoofer Level Control

L+ R+

L +

L –

HIGH LEVEL

INPUTS

GND

R+

R –

L

INPUTS

MAX

2V-8V

100mV-2V

INPUT

SENSITIVITY

MIN

INPUT

LEVEL

+18 90Hz 500Hz HIGH

PASS

0

BASS

BOOST

45Hz

LOW PASS

FREQ

50Hz

HIGH PASS

FREQ

LOW PASS FULL RANGE

CROSSOVER

MODE

SUBWOOFER

LEVEL

CONT ROL

R

POWER

PROTECTION

+

L

+

B R I D GE D

R

SPEAKER CONNECTI ONS

FUSES

+1 2V GND RE M

POWER CONNECTIONS

LR-

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L page

CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

ONYX MOSFET Amplifier User’s Manual - page 9

High Level Input Wiring

NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!

4-Channel Amplifiers

NX3000.4

NX2500.4

NX2000.4

Remote

Subwoofer Level Control

CH

1

+

CH

1

1

+

CH

2

1 2

+

CH

3

GND

HIGH L EVEL

INPUTS

1

+

CH

4

1

INPUTS

CH

2

CH

3

CH

4

100mV-2V 2V-8V

MIN

MAX

100mV-2V 2V-8V

MIN

CH1/2

CH3/4

INPU T

SENSITIVITY

INPU T

LEVEL

0

MAX

0

+18 90Hz 500Hz

LOW

PASS

BAS S

BOOST

+18

45Hz

LOW PASS

FREQ

50Hz

HIGH PASS

90Hz

FREQ

500Hz

FULL

CROS SOVER

MOD E

LOW

PASS

45Hz 50Hz

FULL

HIGH

PASS

HIGH

PASS

SUBWOOFER

LEVEL

CONT ROL

POWER

PROTECTION

+

CH1

+

B R I D GE D

CH2

+

CH3

SPEAKER CONNECTI ONS

+

B R I D GE D

CH4

FUSES

+1 2V GND RE M

POWER CONNECTIONS

To Speaker Terminals of head unit

+

CH2

CH3

CH1

+

+ 1

CH

1

2 1

CH

2

+ 1

CH

3

+ 1

CH

4

GND

HIGH LEVEL

INPUTS

+

CH4

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L page

CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Power and Speaker Wiring

MonoBlock

SPEAKER

IMPEDANCE

2-8 OHMS

Loudspeaker

MonoBlock Amplifiers

NX1800.1

NX2800.1

L+

L –

GND

R+

R –

POWER

L

INPUTS

100mV-2V

2V-8V

INPUT

SENSITIVITY

R

MIN MAX

INPUT

LEVEL

0 +18

BASS

BOOST

45Hz 90Hz

LOW PASS

FREQ

LOW PASS

FULL RANGE

CROSSOVER

MODE

SUBWOOFER

LEVEL

CONT ROL

PROTECTION

+

SPEAKER

FUSES

+1 2V GND RE M

POWER CONNECTIONS

Battery FUSE to REMOTE

TURN-ON terminal of head unit

Chassis ground point

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L page CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Power and Speaker Wiring

2 Channel

2-Channel Amplifiers

NX3000.2

NX2000.2

NX1600.2

Two

Channel

Mode

LEFT

Speaker

RIGHT

Speaker

SPEAKER

IMPEDANCE

2-8 OHMS

L+

L –

HIGH LEVEL

INPUTS

GND

R+

R –

L MAX

INPUTS

2V-8V

100mV-2V

INPUT

SENSITIVITY

MIN

INPUT

LEVEL

+18 90Hz 500Hz HIGH

PASS

0

BASS

BOOST

45Hz

LOW PASS

FREQ

50Hz

FREQ

LOW PASS

HIGH PASS

FULL RANGE

CROSSOVER

MODE

SUBWOOFER

LEVEL

CONT ROL

R

POWER

PROTECTION

+

L

+

B R I D GE D

R

SPEAKER CONNECTI ONS

FUSES

+1 2V GND RE M

POWER CONNECTIONS

Battery FUSE to REMOTE

TURN-ON terminal of head unit

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L page

CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Power and Speaker Wiring

Bridged Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

2-Channel Amplifiers

NX3000.2

NX2000.2

NX1600.2

Bridged

Mode

Subwoofer

SPEAKER

IMPEDANCE

4-8 OHMS

L +

L –

HIGH LEVEL

INPUTS

GND

R+

R –

L

MAX

INPUTS

2V-8V

100mV-2V

INPUT

SENSITIVITY

MIN

INPUT

LEVEL

+18 90Hz 500Hz HIGH

PASS

0

BASS

BOOST

45Hz

LOW PASS

FREQ

50Hz

FREQ

LOW PASS

HIGH PASS

FULL RANGE

CROSSOVER

MODE

SUBWOOFER

LEVEL

CONT ROL

R

POWER

PROTECTION

+

L

+

R

B R I D GE D

SPEAKER CONNECTI ONS

FUSES

+1 2V GND RE M

POWER CONNECTIONS

Battery FUSE to REMOTE

TURN-ON terminal of head unit

Chassis ground point

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2 -3/16 " x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L page

CONTENTS

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

11 MonoBlock Power and

Speaker wiring

12 2CH Power and Speaker wiring

2CH Mode

13 2CH Power and Speaker wiring

Bridged Mode

14 2CH Power and Speaker wiring

TriMode

15 4CH Power and Speaker wiring

4CH Mode

16 4CH Power and Speaker wiring

Bridged Mode

17 4CH Power and Speaker wiring

TriMode

18 Troubleshooting

19 Specifications

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 13

Power and Speaker Wiring

Tri-Mode

2-Channel Amplifiers

NX3000.2

NX2000.2

NX1600.2

Tri-mode operation allows you to connect this amplifier to a pair of main speakers plus a subwoofer on one pair of output channels. The main speakers will operate in STEREO while the subwoofer simultaneously operates in MONO.

To set up the amplifier to run in this mode, put the crossover switches in the

FULL position. Insert high pass filter capacitors and a low pass filter inductor into the wiring as shown below. Be sure to check the table at the bottom of this page to determine the correct capacitor and inductor values for the crossover frequency you wish to achieve.

Component values for

6dB Passive Crossover

FREQUENCY INDUCTOR CAPACITOR

80 Hz

100 Hz

120 Hz

150 Hz

7.5mH

6.5mH

5.5mH

4mH

470uF

330uF

330uF

220uF

Tri-Mode

L +

L –

HIGH LEVEL

INPUTS

GND

R+

R –

L

MAX

INPUTS

2V-8V

100mV-2V

INPUT

SENSITIVITY

MIN

INPUT

LEVEL

+18 90Hz 500Hz HIGH

PASS

0

BASS

BOOST

45Hz

LOW PASS

FREQ

50Hz LOW PASS

HIGH P ASS

FREQ

FULL RANGE

CROSSOVER

MODE

SUBWOOFER

LEVEL

CONT ROL

R

POWER

PROTECTION

+

L

+

R

B R I D GE D

SPEAKER CONNECTI ONS

FUSES

+1 2V GND RE M

POWER CONNECTIONS

LEFT

Speaker

High pass filter crossover

MINIMUM

SPEAKER

IMPEDANCE

4 OHMS

RIGHT

Speaker

Low pass filter inductor

High pass filter crossover

SPEAKER

IMPEDANCE

8 OHMS

Subwoofer

Battery FUSE to REMOTE

TURN-ON terminal of head unit

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2 -3/16 " x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L

Speaker wiring

2CH Mode

Bridged Mode

TriMode

4CH Mode

Bridged Mode

TriMode

ONYX MOSFET Amplifier User’s Manual - page 1

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Power and Speaker Wiring

4 Channel Mode

Four Channel Mode

4-Channel Amplifiers

NX3000.4

NX2500.4

NX2000.4

SPEAKER

IMPEDANCE

2-8 OHMS

CH2

Speaker

CH1

Speaker

CH

1

+

CH

1

1

+

CH

2

1 2

+

CH

3

1

+

CH

4

1

GND

HIGH L EVEL

INPUTS

INPUTS

CH

2

CH

3

MAX +18 90Hz 500Hz

100mV-2V 2V-8V

CH1/2

CH3/4

INPU T

SENSITIVITY

MIN

INPU T

LEVEL

MAX

0

BAS S

BOOST

LOW

PASS

45Hz

+18

LOW PASS

FREQ

50Hz

HIGH P ASS

90Hz

FREQ

500Hz

FULL

CROS SOVER

MOD E

CH

4

100mV-2V 2V-8V

MIN 0 45Hz 50Hz

LOW

PASS

FULL

HIGH

PASS

HIGH

PASS

SUBWOOFER

LEVEL

CONT ROL

POWER

PROTECTION

+

CH1

+

B R I D GE D

CH2

+

CH3

SPEAKER CONNECTI ONS

+

B R I D GE D

CH4

FUSES

+1 2V GND RE M

POWER CONNECTIONS

SPEAKER

IMPEDANCE

2-8 OHMS

CH4

Speaker

CH3

Speaker

Battery FUSE to REMOTE

TURN-ON terminal of head unit

Chassis ground point

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L

Features About 2 Ohm operation

Your ONYX amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring.

Increasing the number of woofers per channel at low frequencies (below

100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about

3dB per speaker, or the equivalent of an additional 10W per speaker.

When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load.

If you lack adequate current, your music reproduction will be distorted.

Speaker wiring

2CH Mode

Bridged Mode

TriMode

4CH Mode

Bridged Mode

TriMode

ONYX MOSFET Amplifier User’s Manual - page 1

ONYX MOSFET Amplifier User’s Manual - page 3

General precautions

Before installing and using your new amplifier, please become familiar with all the information contained in this manual.

Please keep this manual in a safe place for future reference.

• Do not open or attempt to repair this unit yourself. Dangerous high voltages are present which may result in electric shock. Refer any repairs to a qualified service technician.

• To avoid risk of electronic shock or damage to the amplifier, do not permit any of this equipment to become damp or wet from water or drinks. If this does occur, immediately unplug the power wires and send the amplifier to your local dealer or service center as soon as possible.

• If there is smoke or any peculiar odor present during use or if there is damage to any of the component enclosures, immediately unplug the power wire and send the amplifier to your local dealer or service center as soon as possible .

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Power and Speaker Wiring

Bridged Mode

Bridged Mode

4-Channel Amplifiers

NX3000.4

NX2500.4

NX2000.4

SPEAKER

IMPEDANCE

4-8 OHMS

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

RIGHT

Subwoofer

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

+

CH

1

1

+

CH

2

1 2

+

CH

3

1

+

CH

4

1

GND

HIGH L EVEL

INPUTS

INPUTS

CH

2

CH

3

MAX +18 90Hz 500Hz

100mV-2V 2V-8V

MIN

CH1/2

CH3/4

INPU T

SENSITIVITY

INPU T

LEVEL

MAX

0

BAS S

BOOST

LOW

PASS

45Hz

+18

LOW PASS

FREQ

50Hz

HIGH PASS

90Hz

FREQ

500Hz

FULL

CROS SOVER

MOD E

CH

4

100mV-2V 2V-8V MIN 0 45Hz 50Hz

LOW

PASS

FULL

HIGH

PASS

HIGH

PASS

SUBWOOFER

LEVEL

CONT ROL

POWER

PROTECTION

+

CH1

+

CH2

B R I D GE D

+

CH3

SPEAKER CONNECTI ONS

+

B R I D GE D

CH4

FUSES

+1 2V GND RE M

POWER CONNECTIONS

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

LEFT

Subwoofer

SPEAKER

IMPEDANCE

4-8 OHMS

Battery FUSE to REMOTE

TURN-ON terminal of head unit

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2 -3/16 " x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L

About 2 Ohm operation page

.

an additional 10W per speaker

Speaker wiring as soon as possible.

2CH Power and Speaker wiring enclosures, immediately unplug the

2CH Power and Speaker wiring

4CH Mode

Bridged Mode

TriMode

ONYX MOSFET Amplifier User’s Manual - page 1

ONYX MOSFET Amplifier User’s Manual - page 3

ONYX MOSFET Amplifier User’s Manual - page 4

7. Insert fuse(s) into the battery fuse holder(s).

8. Recheck all connections before powering up the amplifier.

9. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points.

10. Power up the head unit and the amplifier. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier’s input level control(s) to just below the level of distortion.

11. Further fine tuning of the various controls may be necessary to obtain best results.

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 5

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Power and Speaker Wiring

Tri-Mode

4-Channel Amplifiers

NX3000.4

NX2500.4

NX2000.4

Tri-mode operation allows you to connect this amplifier to a pair of main speakers plus a subwoofer on one pair of output channels. The main speakers will operate in STEREO while the subwoofer simultaneously operates in MONO.

To set up the amplifier to run in this mode, put the crossover switches in the

FULL position. Insert high pass filter capacitors and a low pass filter inductor into the wiring as shown below. Be sure to check the table at the bottom of this page to determine the correct capacitor and inductor values for the crossover frequency you wish to achieve.

Tri-Mode

Component values for

6dB Passive Crossover

FREQUENCY INDUCTOR CAPACITOR

80 Hz

100 Hz

120 Hz

150 Hz

7.5mH

6.5mH

5.5mH

4mH

470uF

330uF

330uF

220uF

SPEAKER

IMPEDANCE

8 OHMS

RIGHT

Subwoofer

Low pass filter inductor

CH3

Speaker

High pass filter crossover

MINIMUM

SPEAKER

IMPEDANCE

4 OHMS

High pass filter crossover

CH4

Speaker

CH

1

+

CH

1

1 +

CH

2

1 2 1

CH

3

+

CH

4

1

GND

HIGH L EVEL

INPUTS

INPUTS

MAX

100mV-2V 2V-8V

CH1/2

CH3/4

MIN

CH

4

100mV-2V 2V-8V MIN

0

MAX

0

+18

45Hz

+18

45Hz

90Hz

50Hz

90Hz

50Hz

500Hz

LOW

PASS

500Hz

FULL

CROS SOVER

MOD E

LOW

PASS

FULL

HIGH

PASS

HIGH

PASS

SUBWOOFER

LEVEL

CONT ROL

POWER

PROTECTION

+

CH1

+

B R I D GE D

CH2

+

CH3

+

B R I D GE D

CH4

SPEAKER CONNECTI ONS

FUSES

+1 2V GND RE M

POWER CONNECTIONS

Low pass filter inductor

High pass filter crossover

CH2

+

Speaker

High pass filter crossover

MINIMUM

SPEAKER

IMPEDANCE

4 OHMS

+ CH1

Speaker

SPEAKER

IMPEDANCE

8 OHMS

LEFT

Subwoofer

Battery FUSE to REMOTE

TURN-ON terminal of head unit

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

High hiss in the speakers.

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L

About 2 Ohm operation page

9. Set all level controls to minimum

.

a qualified service technician.

10. Power up the head unit and the amplifier. Then set the volume control and adjust the amplifier’s input level

11. Further fine tuning of the various as soon as possible.

12 results.

2CH Power and Speaker wiring enclosures, immediately unplug the

2CH Power and Speaker wiring

4CH Mode

Bridged Mode

TriMode

ONYX MOSFET Amplifier User’s Manual - page 1

ONYX MOSFET Amplifier User’s Manual - page 3

Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for best audio performance.

To Audio

Outputs of head unit or signal processor

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM

Amplifier will not power up.

POSSIBLE REMEDY

Check to make sure you have a good ground connection.

Check that the Remote Input (Turn-On) has at least 3VDC.

Check that there is battery power on the (+) terminal.

Check that there is at least 12v.

Check all fuses, replace if necessary.

Make sure that the Protection LED is not illuminated. If it is lit, shut off the amplifier briefly, and then repower it.

Protection LED comes on when amplifier is powered up.

No output.

Low output.

Audio present in only one channel.

High hiss in the speakers.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Check that all fuses are OK.

Check that amplifier is properly grounded.

Check that the Remote Input (Turn-On) has at least 3VDC.

Check that the RCA audio cables are plugged into the proper inputs.

Check all speaker wiring.

Reset the Level Control.

Check the Crossover Control settings.

Check the RCA interconnect cables.

Check all speaker wiring.

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2-Channel MOSFET Amplifiers

MODEL

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

4-Channel MOSFET Amplifiers

All specifications subject to change without notice.

1500W x 1

2800W X 1

n/a

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a

Variable 0 - +18dB

25A x 2

15-1/8"

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

U S E R ’ S M A N U A L

About 2 Ohm operation page

Low-level (RCA) input wiring is preferred for best audio performance. Always use

2

.

10. Power up the head unit and the

Speaker wiring

12

Outputs of head ent, your unit or signal

If you lack adequate curr enclosures, immediately unplug the

4CH Mode

Bridged Mode

TriMode

ONYX MOSFET Amplifier User’s Manual - page 1

ONYX MOSFET Amplifier User’s Manual - page 3

To Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 7

Low Level Input Wiring

To FRONT

Audio Outputs of head unit or signal processor

To REAR

Audio Outputs of head unit or signal processor

ONYX MOSFET Amplifier User’s Manual - page 8

High Level Input Wiring

To Speaker Terminals of head unit

To Speaker Terminals of head unit

ONYX MOSFET Amplifier User’s Manual - page 9 ONYX MOSFET Amplifier User’s Manual - page 10

Two

Channel

Mode

ONYX MOSFET Amplifier User’s Manual - page 11 ONYX MOSFET Amplifier User’s Manual - page 12

Bridged

Mode

Connect the Positive (+) terminal of the subwoofer to the L (+) amplifier terminal.

Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal.

Tri-Mode

ONYX MOSFET Amplifier User’s Manual - page 13 ONYX MOSFET Amplifier User’s Manual - page 14

Four Channel Mode

Bridged Mode

Connect the Postive (+) terminal of the RIGHT subwoofer to the CH3(+) amplifier terminal.

Connect the Negative (-) terminal of the RIGHT subwoofer to the CH4(-) amplifier terminal.

Connect the Postive (+) terminal of the LEFT subwoofer to the CH1(+) amplifier terminal.

Connect the Negative (-) terminal of the LEFT subwoofer to the CH2(-) amplifier terminal.

ONYX MOSFET Amplifier User’s Manual - page 15 ONYX MOSFET Amplifier User’s Manual - page 16

Tri-Mode

Troubleshooting

If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems.

SYMPTOM POSSIBLE REMEDY

Protection LED comes on when amplifier is powered up.

Check for short circuits on speaker leads.

Turn down the volume control on the head unit to prevent overdriving.

Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing.

Chassis ground point

ONYX MOSFET Amplifier User’s Manual - page 17

High hiss in the speakers.

Squealing noise from speakers.

Distorted sound.

Amplifier gets very hot.

Engine noise

(static type)

Engine noise

(alternator

whine)

Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found.

It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible.

Check for improperly grounded RCA interconnects.

Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some applications, it may be necessary to add external cooling fan(s).

This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables.

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

ONYX MOSFET Amplifier User’s Manual - page 18

Specifications

MODEL

2-Channel MOSFET Amplifiers

NX1600.2

NX2000.2

NX3000.2

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

400W x 2

800W X 2

1600W X 1

500W x 2

1000W X 2

2000W x 1

2 Ohm Stereo 2 Ohm Stereo

4 Ohm Mono Bridged

0.01% 0.01%

20Hz-22kHz

102dB

9Hz-50kHz

103dB

90dB

125+

90dB

125+

30Hz-160Hz

50Hz-1kHz

35Hz-160Hz

200Hz (fixed)

Variable 0 to +18dB

25A

12-7/8"

15A x 2

15-13/16"

700W x 2

1500W X 2

3000W x 1

2 Ohm Stereo

0.01%

9Hz-50kHz

103dB

90dB

125+

35Hz-160Hz

200Hz (fixed)

30A x 2

22"

MonoBlock MOSFET Amplifiers

NX1800.1

NX2800.1

900W x 1 1500W x 1

1800W X 1

n/a

2800W X 1

n/a

2 Ohm Stereo 2 Ohm Stereo

0.01%

15-250Hz

100dB

125+

0.01%

15-250Hz

100dB

90dB

125+

35Hz-160Hz n/a Va\

35Hz-160Hz n/a riable 0 - +18dB Variable 0 - +18dB

25A

11-3/4"

25A x 2

15-1/8"

MODEL

4-Channel MOSFET Amplifiers

NX2000.4

NX2500.4

NX3000.4

RMS POWER into 4 Ohms

MAX POWER into 2 Ohms

BRIDGED POWER into 4 Ohms

200W x 4

500W X 4

1000W X 2

250W x 4

625W X 4

1250W x 2

300W x 4

750W X 4

1500W x 2

Min. speaker impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Damping factor

Crossover range low pass high pass

Bass boost

Fuse rating

Dimensions:

(10" x 2

-3/16

" x ...)

2 Ohm Stereo 2 Ohm Stereo

4 Ohm Mono Bridged

2 Ohm Stereo

4 Ohm Mono Bridged

0.01%

20Hz-22kHz

0.01%

9Hz-50kHz

0.01%

9Hz-50kHz

102dB

90dB

125+

103dB

90dB

125+

103dB

90dB

125+

45Hz-90Hz

50Hz-500Hz

35Hz-160Hz

200Hz (fixed)

35Hz-160Hz

200Hz (fixed)

Variable 0 to +18dB Variable 0 - +18dB

25A x 2

15-5/8"

30A x 2

18-5/16"

25A x 3

23-1/2"

All specifications subject to change without notice.

ONYX MOSFET Amplifier User’s Manual - page 19

Notes

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Key Features

  • Class A-B operation for high efficiency and low distortion
  • Bridgeable outputs for increased power and flexibility
  • Tri-Mode capable for versatile system configurations
  • MOSFET PWM power supply for efficient and reliable power delivery
  • 2 Ohm stable stereo operation for increased power output
  • Variable input gain control for precise level matching
  • Variable low pass and high pass crossovers for customizable frequency response
  • Variable 0 to +18dB Bass Boost for enhanced low-end performance
  • Chrome-plated RCA and high-level inputs for compatibility with various sources
  • LED power and protection indicators for easy monitoring

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Frequently Answers and Questions

What is the difference between the two-channel and four-channel amplifiers?
The two-channel amplifiers have two channels, each capable of driving a pair of speakers, while the four-channel amplifiers have four channels, each capable of driving a single speaker.
Can I bridge the channels of the amplifier to increase power?
Yes, the amplifiers feature bridgeable outputs, allowing you to combine the power of two channels into a single, more powerful channel.
What is the purpose of the variable low pass and high pass crossovers?
The variable crossovers allow you to customize the frequency response of the amplifier, sending specific frequency ranges to different speakers or subwoofers.

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