Rockford Fosgate 400x4 Installation & Operation Manual

®

4 t r a n s

• a n a

4-C

HANNEL

A

MPLIFIER

I

NSTALLATION

& O

PERATION

M

ANUAL

® ®

Dear Customer,

Congratulations on your purchase of the world's finest brand of car audio amplifiers. At Rockford Fosgate we are committed to musical reproduction at its best, and we are pleased you chose our product. Through years of engineering expertise, hand craftsmanship and critical testing procedures, we have created a wide range of products that reproduce music with all the clarity and richness you deserve.

For maximum performance we recommend you have your new Rockford Fosgate product installed by an Authorized Rockford Fosgate Dealer, as we provide specialized training through Rockford Technical Training Institute (RTTI). Please read your warranty and retain your receipt and original carton for possible future use.

To add the finishing touch to your new Rockford Fosgate image order your Rockford accessories, which include everything from T-shirts and jackets to hats and sunglasses.

To get a free brochure on Rockford Fosgate products and Rockford accessories, in the U.S. call 602-967-3565 or FAX 602-967-8132. For all other countries, call

+001-602-967-3565 or FAX +001-602-967-8132.

PRACTICE SAFE SOUND™

CONTINUOUS EXPOSURE TO SOUND PRESSURE LEVELS

OVER 100dB MAY CAUSE PERMANENT HEARING LOSS. HIGH

POWERED AUTO SOUND SYSTEMS MAY PRODUCE SOUND

PRESSURE LEVELS WELL OVER 130dB. USE COMMON SENSE

AND PRACTICE SAFE SOUND.

If, after reading your manual, you still have questions regarding this product, we recommend that you see your Rockford Fosgate dealer. If you need further assistance, you can call us direct at 1-800-795-2385. Be sure to have your serial number, model number and date of purchase available when you call.

The serial number can be found on the outside of the box. Please record it in the space provided below as your permanent record. This will serve as verification of your factory warranty and may become useful in recovering your amplifier if it is ever stolen.

Serial Number: ____________________

Model Number: ____________________

T

A B L E O F

C

O N T E N T S

Introduction ...................................................................................... 1

Punch 4-Channel Amplifier Accessory Pack ...................................... 1

Rockford Fosgate Accessories ............................................................ 2

Technical Design Features ................................................................ 3

Design Features ................................................................................. 7

Installation Considerations ................................................................ 9

Mounting Location .......................................................................... 10

Battery and Charging ....................................................................... 11

Wiring the System ........................................................................... 11

Using the XCard .............................................................................. 14

XCard Configurations ...................................................................... 15

Using the Signal Input Switch .......................................................... 18

Basic Connections ........................................................................... 20

System Diagrams ............................................................................. 27

Troubleshooting .............................................................................. 31

Dynamic Power Measurements ....................................................... 34

400x

4

Specifications ....................................................................... 37

Warranty Information ...................................................................... 38

G

E T T I N G

S

T A R T E D

Welcome to Rockford Fosgate! This manual is designed to provide information for the owner, salesperson and installer. For those of you who want quick information on how to install this product, please turn to the Basic Connections in the Installation section of this manual. Other information can be located by using the Table of

Contents. We, at Rockford Fosgate, have worked very hard to make sure all the information in this manual is current. But, as we are constantly finding new ways to improve our product, this information is subject to change without notice.

I

N T R O D U C T I O N

The Punch 400x

4

(pronounced “x4” not “by 4”) is a 4-channel amplifier which can deliver 400 watts RMS. This amplifier utilizes a 2/4-channel input switch to eliminate the need for signal splitters. Four internal XCard crossovers allow the amplifier to be configured for use with many popular system designs without the added cost of external processors. The Punch 400x

4 is a powerful 4-channel amplifier with integrated features which are offered at a competitive price.

We strongly recommend you have your Authorized Rockford

Fosgate Dealer install your new Punch amplifier. If you do choose to install it yourself, please be sure to read the entire manual before beginning.

P

U N C H

4-C

HANNEL

A

M P L I F I E R

A

C C E S S O R Y

P

A C K

The accessory pack shipped with the Punch 4-channel amplifier includes the mounting hardware necessary to secure the amp to the vehicle as well as attach the end caps.

Installation & Operation Manual

Punch Verification Certificate

(10) Allen Head Screws for speaker and power connectors

(4) Mounting Screws for end caps

(4) Mounting Screws for amplifier

(1) Allen Wrench 7/64"

(1) Allen Wrench 3/32"

(1) AGU In-line Fuseholder

(1) AGU 50 Amp Fuse

– 1 –

R

O C K F O R D

F

O S G AT E

A

C C E S S O R I E S

The following accessories were designed to enhance the performance of the Punch 400x

4

amplifiers.

Energy Storage Capacitor

The Punch capacitors are used to provide extra current needed by amplifiers to reproduce musical transients. The Punch Caps also have the natural ability to filter AC ripple caused by the alternator, reducing the chance of noise in the system. The Punch Caps will maximize both the sound quality and performance that Rockford

Fosgate amplifiers can deliver.

Punch Link (FG-LINK)

The Punch Link is a specially cast heatsink interconnect which allows you to join any of our current Punch or Punch Power amplifiers together. While providing additional cooling through the coupling process, the Punch Link adds the finishing touch by giving you the look of one awesome amplifier.

XCard

Additional crossover card frequencies are available for specialized requirements. You can get the following XCards from your

Authorized Rockford Fosgate Dealer.

XM50 = 50Hz

XM70 = 70Hz

XM100 = 100Hz

XM150 = 150Hz

XM200 = 200Hz

XM275 = 275Hz

XM400 = 400Hz

XM4.5k = 4,500Hz

XM6.5k = 6,500Hz

XM00 = Blank card for custom crossover

– 2 –

T

ECHNICAL

D

ESIGN

F

EATURES

◆ TRANS•ANA (TRANSconductance Active

Nodal Amplifier)

The TRANS•ANA (TRANSconductance Active Nodal Amplifier) is a circuit that allows the audio signal to pass through the amplifier at low voltage. The signal is directly level-shifted to the fixed high voltage rails via a pair of driver transistors. Signal linearity is assured by an active node formed by the driver transistors at ultrasonic frequencies. This allows amplifier performance similar to trans• nova which is highly stable and linear while utilizing the advantages of a non-floating power supply.

THE RESULT: An extended frequency bandwidth accurately supplied to the output stages of the amplifier.

◆ TOPAZ (Tracking Operation Pre-Amplifier Zone)

The TOPAZ (Tracking Operation Pre-Amplifier Zone) circuitry solves ground loop noise problems common to automotive amplifier design. This innovative new development allows vastly improved isolation of the input signal grounds from the power supply ground of the amplifier. This is accomplished by allowing the source unit to control the potential “environment” of the entire input structure or “zone” of the amplifier. This process improves the noise rejection of the amplifier by 30-40dB – an astounding 30-100 times better than amplifiers without TOPAZ.

THE RESULT: Elimination of troublesome ground loop noise between source and amplifier.

– 3 –

◆ DSM (Discrete Surface Mount) Technology

The DSM (Discrete Surface Mount) manufacturing process combines the advantages of both discrete components and integrated circuitry. Rockford Fosgate is the only American amplifier manufacturer to have invested millions into this process. DSM components differ from conventional discrete components in three ways. They are more compact, more rugged, and they efficiently dissipate generated heat. Using them wherever appropriate allows the advantages associated with discrete circuitry to be retained while also providing room for both highly advanced processing features and generous PC board copper paths where needed. Their short lead-out structures allow maximum audio performance and highest signal-to-noise ratios to be obtained in amplifiers of desirable package size without resorting to “amplifier-on-a-chip” shortcuts. These advantages are shown in Figure 1.

Figure 1

Solder

Component

Solder

Thru-Hole

Surface Mount

THE RESULT: Fewer connections, improved reliability, shorter signal paths, superior signal-to-noise ratio and awesome sonic performance.

◆ XCard (Internal Crossover)

The Punch and Power amplifiers utilize internal active crossovers. These crossovers have many performance advantages such as using discrete components for exact frequency adjustments which are far superior to potentiometers. Additionally, the XCard can be configured for high-pass, low-pass and full range operation. With slight modifications, many crossover frequencies and slope configurations can be achieved.

THE RESULT: Increased system design flexibility with a precise electronic crossover without the limitations of conventional potentiometer designs.

– 4 –

◆ RTP (Real Time Protection)

NOMAD (NOn-Multiplying Advanced Decision)

The Punch and Power amplifiers use an analog computer process to maximize safe output power under all operating conditions. Rockford Fosgate pioneered and developed RTP (Real Time Protection), a crucial element in the performance edge of our amplifiers. The innovative NOMAD (NOn-Multiplying Advanced Decision) system is the most sophisticated version of this technique ever used, bringing previously unavailable levels of accuracy, stability, temperature immunity and reliability to this critical process. NOMAD makes advanced decisions based on device voltages to precisely control the awesome levels of current available in the output

MOSFETs to safe values – but only when absolutely needed.

THE RESULT: Extremely fast protection system that always protects the amplifier and never degrades the sound.

◆ MOSFET Devices

Rockford Fosgate is one of the few manufacturers in the audio industry to utilize MOSFET devices in both the power supply and the output stages. MOSFET (Metal Oxide Semiconductor Field

Effect Transistor) devices offer several important inherent advantages over the 30 year old technology of bi-polar design. These advantages include: thermal stability, switching speed, ultra low output impedance and wider bandwidth linearity. In addition,

MOSFETs operate very similar to vacuum tubes in which they are more linear than bipolar transistors. However, MOSFETs can deliver the midrange clarity without the limitations of transient response and high frequency phase shifting normally associated with tube operation.

THE RESULT: Operational characteristics similar to vacuum tubes without the performance limitations of tube designs.

– 5 –

◆ Pass-Thru Output

The Pass-Thru output provides a convenient source for daisychaining an additional amplifier without the need for extra RCA cables or “Y” adapters. The Pass-Thru signal is derived from summing the Front and Rear Left inputs to create a Left output, and summing the Front and Rear Right inputs to create a Right output.

When the amplifier is used with 4-channel inputs, the Pass-Thru provides constant output regardless of the source unit fade position. Additionally, the Pass-Thru has an XCard that can be set for High-Pass, Low-Pass or Full Range.

THE RESULT: Constant non-faded output for adding woofer amplifiers.

– 6 –

D

ESIGN

F

EATURES

1. Cast Aluminum Heatsink – The cast aluminum heatsink of the

Punch amplifier dissipates heat generated by the amplifier's circuitry. The inherent advantage of casting provides a 30% improvement of cooling over conventional extrusion heatsink designs.

2. End Caps – Interchangeable end caps conceal the wiring and input cables, giving the amplifier a clean “stealth” look.

9 8 10 7

9

6

3 5 4 11 3

3. Speaker Terminals – The heavy duty, gold-plated terminal block connectors (+ and –) will accept wire sizes from 8 AWG to 18

AWG. These gold-plated connectors are immune to corrosion that can cause signal deterioration.

4. Power Terminals – The power and ground connectors on the

Punch amplifier are gold-plated and will accommodate up to 8

AWG wire maximizing the input current capability of the amplifier.

5. REM Terminal – This spade terminal is used for the auto power/ remote turn-on of the Punch amplifier.

6. RCA Input Jacks – The industry standard RCA jacks provide easy connections for signal level input. They are gold-plated to resist the signal degradation caused by corrosion.

– 7 –

7. Signal Input Switch – This switch allows selection of 2-channel or 4-channel input.

8. RCA Pass-Thru Jacks – The Pass-Thru provides a convenient source for daisy-chaining an additional amplifier without running an extra set of RCA cables from the front of the vehicle to the rear amplifier location. One of the internal XCards can be designated to the Pass-Thru, creating a dedicated low-pass, high-pass, or full range output.

9. Input Sensitivity Controls – The input level controls are preset for

500mV which will match the output of most source units. They can be adjusted to match input levels ranging from 150mV to 3V.

10. Phase Switch – This switch enables you to easily invert the rear channel phase without having to disconnect the speaker wires.

11. LED Power Indicator – The LED illuminates when the unit is turned on.

12. XCard (Internal Crossover) – These built-in crossover cards are configurable for a multitude of operating frequencies. The orientation of the card in its socket determines the function of highpass, low-pass, or full range operation.

®

4 t r a n s • a n a

AMPLIFIER

50 Watts x 4 into 4 Ohms with less than 0.05% THD

100 Watts x 4 into 2 Ohms with less than 0.10% THD

®

®

ROCKFORD CORPORATION

MADE IN THE USA

LP

High-Pass

H P

Low-Pass

HP

L P

Full Range

FULL ↕

Front XCard

Rear XCards

Dual Filter

XCard 1

XCard 2

XCard 3

Pass-Thru XCard XCard 4

– 8 –

XCard Front

XCard Rear 1

XCard Rear 2

XCard Pass-Thru

12

I

N S TA L L AT I O N

C

O N S I D E R AT I O N S

The following is a list of tools you will need for installing the Punch amplifier:

Allen wrenches 7/64" & 3/32" (included) Voltmeter

Wire strippers Battery post wrench

Electric hand drill w/assorted bits

Wire crimpers

Wire cutters

Assorted connectors

This section focuses on some of the vehicle considerations for installing your new Punch amplifier. Checking your battery and present sound system, as well as pre-planning your system layout and best wiring routes will save installation time. When deciding how to lay out your new system, be sure that each component will be easily accessible for making adjustments.

Before beginning any installation, be sure to follow these simple rules:

1. Be sure to carefully read and understand the instructions before attempting to install the amplifier.

2. For safety, disconnect the negative lead from the battery prior to beginning the installation.

3. For easier assembly, we suggest you run all wires prior to mounting your amplifier in place.

4. Route all of the RCA cables close together and away from any high current wires.

5. Use high quality connectors for a reliable installation and to minimize signal or power loss.

6. Think before you drill! Be careful not to cut or drill into gas tanks, fuel lines, brake or hydraulic lines, vacuum lines or electrical wiring when working on any vehicle.

7. Never run wires underneath the vehicle. Running the wires inside the vehicle provides the best protection.

8. Avoid running wires over or through sharp edges. Use rubber or plastic grommets to protect any wires routed through metal, especially the firewall.

9. ALWAYS protect the battery and electrical system from damage with proper fusing. Install the appropriate fuseholder and fuse on the +12V power wire within 18” (45.7 cm) of the battery terminal.

10. When grounding to the chassis of the vehicle, scrape all paint from the metal to ensure a good, clean ground connection.

Grounding connections should be as short as possible and always be connected to metal that is welded to the main body, or chassis, of the vehicle.

– 9 –

M

OUNTING

L

OCATION

The mounting location and position of your amplifier will have a great effect on its ability to dissipate the heat generated during normal operation. The design of our cast aluminum heatsink serves to easily dissipate the heat generated over a wide range of operating conditions. However, to maximize the performance of your amplifier, care should be taken to ensure adequate ventilation.

Trunk Mounting

Mounting the amplifier vertically on a surface with the fin grooves running up and down will provide the best cooling of the amplifier.

Mounting the amplifier on the floor of the trunk will work but provides less cooling capability than vertical mounting.

Mounting the amplifier upside down to the rear deck of the trunk will not provide proper cooling and will severely affect the performance of the amplifier and is not recommended.

Passenger Compartment Mounting

Mounting the amplifier in the passenger compartment will work as long as you provide a sufficient amount of air for the amplifier to cool itself. If you are going to mount the amplifier under the seat of the vehicle, you must have at least 1" (2.54cm) of air gap around the amplifier's heatsink.

Mounting the amplifier with less than 1" (2.54cm) of air gap around the amplifier's heatsink in the passenger compartment will not provide proper cooling and will severely affect the performance of the amplifier and is not recommended.

Engine Compartment Mounting

Rockford Fosgate amplifiers should never be mounted in the engine compartment. Not only will this void your warranty but could create an embarrassing situation caused by the ridicule from your friends.

– 10 –

B

ATTERY AND

C

HARGING

Amplifiers will put an increased load on the vehicle's battery and charging system. We recommend checking your alternator and battery condition to ensure that the electrical system has enough capacity to handle the increased load of your stereo system. Stock electrical systems which are in good condition should be able to handle the extra load of any Rockford amplifier without problems, although battery and alternator life can be reduced slightly. To maximize the performance of your Rockford Fosgate amplifier, we suggest the use of a heavy duty battery, high output alternator and an energy storage capacitor.

W

I R I N G T H E

S

Y S T E M

CAUTION: Avoid running power wires near the low level input cables, antenna, power leads, sensitive equipment or harnesses. The power wires carry substantial current and could induce noise into the audio system.

• For safety, disconnect the negative lead from the battery prior to beginning the installation.

1. Plan the wire routing. Take care when running signal level RCA cables to keep them close together but isolated from the amplifier's power cables and any high power auto accessories, especially electric motors. This is done to prevent coupling the noise from radiated electrical fields into the audio signal. When feeding the wires through the firewall or any metal barrier, protect them with plastic or rubber grommets to prevent short circuits. Leave the wires long at this point to adjust for a precise fit at a later time.

2. Prepare the Power cable for attachment to the amplifier by stripping 5/8" of insulation from the end of the wire. The use of 8 gauge power cable can interfere with the installation of the end caps. Proper wire dress can prevent this from occurring. To prevent the wire from fraying, strip the insulation at a 45

°

angle.

Insert the bared wire into the B+ terminal with the long side of the insulation on the top. Bend the cable down at a 90

°

angle. Tighten the set screw to secure the cable in place.

– 11 –

3. Mount the fuseholder within 18" of the battery using two (2) #8 screws. Disassemble the fuseholder. You should have 2 black plastic end caps, 2 gold-plated fuse clips, a plastic spacer and the fuseholder body. Trim the amplifier power cable to reach the fuseholder and strip the wire 3/8". Slide one of the end caps over the wire (narrow end first) and insert the wire into one of the fuse clips. Tighten the set screw. Screw the black end cap to the fuseholder body to secure the cable. Use the section of cable that was trimmed earlier and connect it to the other end of the fuseholder. Install the plastic spacer in the fuseholder and attach the cable to the fuseholder body.

NOTE: The B+ cable MUST be fused 18" or less from the vehicle's battery. Install the fuseholder under the hood and prepare the cable ends as stated above. Connections should be water tight.

4. Strip 3/8" from the battery end of the power cable and crimp the large ring terminal to the cable. Use the ring terminal to connect to the battery positive terminal. Do not install the fuse at this time.

5. Prepare a length of cable to be used for the ground connection.

Strip 5/8" of insulation from the end of the cable as described previously and connect to the appropriate terminal of the amplifier. Prepare the chassis ground by scraping any paint from the metal surface and thoroughly clean the area of all dirt and grease. Strip the other end of the wire and attach a ring connector. Fasten the cable to the chassis using a screw.

6. Prepare the REM turn-on wire for connection to the amplifier by stripping 5/8" of insulation from the wire end and crimping an insulated spade connector in place. Slide the connector over the REM terminal on the amplifier. Connect the other end of the REM wire to a switched 12 volt positive source. The switched signal is usually taken from the source unit's auto antenna or the accessory lead. If the source unit does not have these outputs available, the recommended solution is to wire a mechanical switch in line with a 12 volt source to activate the amplifier.

7. Connect the source signal to the amplifier by plugging the RCA cables into the input jacks at the amplifier.

– 12 –

8. Connect the speakers. Strip the speaker wires 5/8" and insert into the appropriate terminal on the amplifier. Insert the bared wire into the speaker terminal and tighten the set screw to secure into place. Be sure to maintain proper speaker polarity.

DO NOT chassis ground any of the speaker leads as unstable operation may result.

9. Perform a final check of the completed system wiring to ensure that all connections are accurate. Check all power and ground connections for frayed wires and loose connections which could cause problems.

10.

After the final inspection is complete, install the power fuse and enjoy listening. During the initial listening period, you may need to “fine tune” any phasing and level settings within your particular vehicle. To aid in this procedure, play a track with high musical content and cruise around your neighborhood. After fully evaluating the transient response of your system and making any final adjustments, all your neighbors within a 1 mile radius will assume that you have just successfully completed another upgrade to your audio system for which they will probably spill thumbtacks on your driveway.

– 13 –

U

S I N G T H E

XC

ARD

The crossover functions are controlled through the use of an

XCard and can be set for high-pass, low-pass or full range operation. Each crossover card has two faces: one face operates

Full Range, the other has arrows to indicate the edge for selecting

HP (high-pass) or LP (low-pass) operation. Orient the card with the desired operating edge, indicated by the arrow, toward the socket terminals inside the amplifier. Firmly, but carefully, plug the card into the socket.

LP

High-Pass

HP

HP

Low-Pass

LP

Full Range

FULL ↕

The crossover point can be altered by changing the resistor value.

Use the following formula to select the appropriate resistor value to be placed on the XCard.

3386 fo

= R (in k

Ω

) for .047

µ f cap

7234 fo

= R (in k

Ω

) for .022

µ f cap

The actual formula is:

R =

1

2

π foc

Crossover Card

High Pass

Low Pass

Full Range

FULL

Where: R = ohms fo = desired crossover frequency c = capacitor in farads ex: .047 x 10-6 for .047

µ f cap

– 14 –

XC

ARD

C

ONFIGURATIONS

Configure a 12dB/octave filter for the Front channels.

+ L –

Rear

+ R –

REM B+ GND

LED

– L +

Front

– R +

Front XCard

HP

XCard Rear 1

XCard Rear 2

XCard Pass-Thru

• Front XCard set to High-Pass or Low-Pass

100Hz-20kHz

12dB/octave HP

Configure a 12dB/octave filter for the Rear channels.

+ L –

Rear

+ R –

REM B+ GND

LED

– L +

Front

– R +

XCard Front

XCard Rear 1

LP

20Hz-100Hz

12dB/octave LP

XCard Pass-Thru

XCard Rear 2

Full

Range

• Rear XCard 1 set to High-Pass or Low-Pass

• Rear XCard 2 set to Full Range

– 15 –

Configure a 24dB/octave filter for the Rear channels.

+ L –

Rear

+ R – REM B+ GND

LED

– L +

Front

– R +

XCard Rear 1

LP

XCard Front

20Hz-100Hz

24dB/octave LP

XCard Pass-Thru

XCard Rear 2

LP

• Rear XCards 1 & 2 set identically to High-Pass or Low-Pass

Configure a 12dB/octave Bandpass filter for the Rear channels.

+ L –

Rear

+ R –

REM B+ GND

LED

– L +

Front

– R +

XCard Rear 1

HP

XCard Front

100Hz-275Hz

12dB/octave BP

XCard Pass-Thru

XCard Rear 2

LP

• Rear XCard 1 inserted as High-Pass

• Rear XCard 2 inserted as Low-Pass

* The 400x4 is shipped with 100Hz XCards. At least one of the XCards must be customized to enable proper bandpass operation. Refer to “Using the XCard” on page 14 for more information. Additional crossover card frequencies are available from your Authorized Rockford Fosgate Dealer. (See page 2)

– 16 –

Configure a 12dB/octave filter for the Pass-Thru

Front

Gain 0/180 4/2

Rear

Gain

20Hz-100Hz

12dB/octave LP

XCard Front

XCard Rear1

XCard Rear2

XCard Pass-Thru

LP

• Pass-Thru XCard set to High-Pass or Low-Pass

– 17 –

U

SING THE

S

IGNAL

I

NPUT

S

WITCH

2-Channel Input

Front

Gain

INPUT

1 2

R R

Front

L

Pass-Thru

L

Rear

0

°

/180

° 4/2

Input

Rear

Gain

L - Summed

Output

R - Summed

Output

+ L –

Rear

+ R –

REM B+ GND

LED

– L +

Front

– R +

L R

L R

• RCAs connected to Front inputs

• Signal Input Switch set to 2-channel input

• Pass-Thru is a non-fading summed output

• This configuration eliminates the need for signal splitters

– 18 –

4-Channel Input

Front

Gain

INPUT

1 2 3 4

R R

Front

L

Pass-Thru

L

Rear

0 ° /180 ° 4/2

Input

Rear

Gain

L - Summed

Output

R - Summed

Output

+ L –

Rear

+ R –

REM B+ GND

LED

– L +

Front

– R +

L R R R

L F R F

• RCAs connected to Front & Rear inputs

• Signal Input Switch set to 4-channel input

• Pass-Thru is a non-fading summed output

• This configuration allows for Front & Rear fading

– 19 –

B

A S I C

C

O N N E C T I O N S

Power Connections

+ L – + R –

Connect to remote turn-on lead of source unit

B+ GND

LED

– L + – R +

Connect to chassis ground of vehicle*

Less than 18"

Connect to B+ of battery with a 50 amp fuse

*Keep grounds as short as possible.

– 20 –

2-Channel Stereo Operation

Front

Gain

INPUT

Front Rear

Pass-Thru

0/180 4/2

Rear

Gain

+ L –

Rear

+ R – REM B+ GND

LED

– L +

Front

– R +

+ –

– +

4 ohm min.

left

4 ohm min.

right

• RCAs are connected to front inputs

• Signal Input Switch set to 2-channel input

• Phase Switch set to 0 °

• Gain for front and rear left channels set equally to balance the subwoofer

• Gain for front and rear right channels set equally to balance the subwoofer

• Impedance for each bridged channel should be no less than 4

Ω

• XCards for front and rear are set identically as 12dB High-Pass,

12dB Low-Pass or Full Range

– 21 –

2-Channel Mono Operation

INPUT

Front

Gain

Front Rear

Pass-Thru

0/180 4/2

Rear

Gain

+ L –

Rear

+ R – REM B+ GND

LED

– L +

Front

– R +

+ –

– +

4 ohm min.

4 ohm min.

• RCAs are connected to front inputs

• Signal Input Switch set to 2-channel input

• Phase Switch set to 0

°

• Gain for front left and right channels set equally to balance the subwoofer

• Gain for rear left and right channels set equally to balance the subwoofer

• Impedance for front bridged channel should be no less than 4 Ω

• Impedance for rear bridged channel should be no less than 4

Ω

• Front XCard can be set to 12dB High-Pass, 12dB Low-Pass or

Full Range

• Rear XCard can be set to 12dB High-Pass, 12dB Low-Pass or

Full Range

– 22 –

3-Channel Operation

INPUT

4-Ch.

2-Ch.

Front

Gain

Front Rear

Pass-Thru

0/180 4/2

Rear

Gain

+ L –

Rear

+ R – REM B+ GND

LED

– L +

Front

– R +

+ –

4 ohm min.

–

2 ohm min.

+ –

2 ohm min.

+

• RCAs are connected to front or front and rear inputs

• Signal Input Switch is set to 2-channel or 4-channel input

• Phase Switch set to 0 ° or 180 ° *

• Gain for front channels operate independently

• Gain for rear bridged channels set equally to balance the subwoofer

• Impedance for front stereo channels should be no less than 2 Ω

• Impedance for rear bridged channel should be no less than 4 Ω

• Front XCard can be set for High-Pass, Low-Pass or Full Range

• Rear XCard can be set for High-Pass, Low-Pass, Bandpass or Full Range

*Adjust the phase switch to 180

°

if XCard for front channel is set to HP and XCard for rear channel is set to LP (or vice versa).

– 23 –

4-Channel Stereo Operation

INPUT

4-Ch.

2-Ch.

Front

Gain

Front Rear

Pass-Thru

0/180 4/2

Rear

Gain

+

+ L –

Rear

+ R – REM B+ GND

LED

– L +

Front

– R +

–

2 ohm min.

+ –

2 ohm min.

–

2 ohm min.

+ –

2 ohm min.

+

• RCAs are connected to front or front and rear inputs

• Signal Input Switch is set to 2-channel or 4-channel input

• Phase Switch set to 0

°

*

• Gain for all channels operate independently

• Impedance for each stereo channel should be no less than 2

Ω

• Front XCard can be set for High-Pass, Low-Pass or Full Range

• Rear XCard can be set for High-Pass, Low-Pass , Bandpass or Full Range

* Adjust the phase switch to 180 ° if XCard for front channel is set to HP and XCard for rear channel is set to LP (or vice versa).

– 24 –

4-Channel Stereo/Single Mono Operation

INPUT

4-Ch.

2-Ch.

Front

Gain

Front Rear

Pass-Thru

0/180 4/2

Rear

Gain

+ L –

Rear

+ R – REM B+ GND

LED

– L +

Front

– R +

+ –

2 ohm min.

+

2 ohm min.

–

–

2 ohm min.

–

+ –

+

2 ohm min.

+

4 ohm min.

• RCAs are connected to front or front and rear inputs

• Signal Input Switch is set to 2-channel or 4-channel input

• Phase Switch set to 0 °

• Gain for front channels set equally to balance the subwoofer

• Gain for rear channels operate independently

• Impedance for front and rear stereo channels should be no less than 2 Ω

• Impedance for front bridged channels should be no less than 4

Ω

• Front XCard is set for Full Range

• Rear XCard is set to High-Pass, Low-Pass, Bandpass or Full Range

– 25 –

4-Channel Stereo/Dual Mono Operation

INPUT

4-Ch.

2-Ch.

Front

Gain

Front Rear

Pass-Thru

0/180 4/2

Rear

Gain

+ L –

Rear

+ R – REM B+ GND

LED

– L +

Front

– R +

+ –

2 ohm min.

+

4 ohm min.

–

+ –

2 ohm min.

–

2 ohm min.

–

+

4 ohm min.

– +

+

2 ohm min.

• RCAs are connected to front or front and rear inputs

• Signal Input Switch is set to 2-channel or 4-channel input

• Phase Switch set to 0 °

• Gain for front left and right set equally to balance the subwoofer

• Gain for rear left and right set equally to balance the subwoofer

• Impedance for front and rear stereo channels should be no less than 2 Ω

• Impedance for front and rear bridged channels should be no less than 4 Ω

• Front XCard is set to Full Range

• Rear XCard is set to Full Range

– 26 –

S

Y S T E M

D

I A G R A M S

200 Watt 3-Way System

Front Rear

®

+ –

+ –

RFA-812

20Hz - 100Hz

24dB/octave LP

® t r a n s

4

• a n a

+

–

RFA-414

2X-4

+

–

+

–

100Hz - 20kHz

12dB/octave HP

–

+

RFA-414

2X-4

–

+

–

+

– 27 –

400 Watt 4-Way System

Front Rear

®

Pass-Thru

100Hz - 275Hz

12dB/octave LP

12dB/octave HP

+ t r a n s

®

4

• a n a

+

– –

+

+

–

RFA-414

+

2X-4

–

–

+

–

RFA-414

2X-4

275Hz - 20kHz

12dB/octave HP

–

+

–

+

RFA-812

+

–

+

–

20Hz - 100Hz

24dB/octave LP

– 28 –

600 Watt 4-Way System

– 29 –

2

D S M

®

800 Watt 4-Way System

2

D S M

®

2

D S M

®

– 30 –

T

R O U B L E S H O O T I N G

Symptom

Amplifier does not turn on

(Power LED is off)

Diagnosis

Voltage applied to the

REM terminal of the amplifier is not between

10.5 and 15.5 volts or there is no voltage present.

Voltage to the B+ terminal of the amplifier is not between 10.5 and

15.5 volts or there is no voltage present.

Remedy

Check the alternator, battery, fuse, and wiring and repair as necessary. If the voltage is above 15.5 volts, have the electrical system inspected by an authorized car service center.

Check the alternator, battery, fuse, and wiring and repair as necessary. If the voltage is above 15.5 volts, have the electrical system inspected by an authorized car service center.

Amplifier is not properly grounded.

Check wiring and repair as necessary.

Amplifier has no sound

(Power LED is on)

RCA Input from source unit is not connected or not functioning properly.

XCard is missing or not placed properly in crossover slots.

Speaker leads are shorted to each other or to the chassis of the vehicle.

Speakers are defective.

Check connections, substitute with known working source and cables and repair or replace as necessary.

Check XCard position and repair or replace as necessary.

Disconnect existing speakers and test with known working speakers and wires.

If amplifier plays, check and repair wiring and installation of speakers as necessary.

Disconnect existing speakers and test with known working speakers. If amplifier plays, check and repair speakers as necessary.

– 31 –

Symptom

Speaker Output

Low or Distorted

No Output on

Rear Channels

Only

(using 2 inputs)

Rear Channels are Non-Fading

(using 4 inputs)

Diagnosis

Input gain signal for amplifier is incorrectly set.

Source unit output too low or source unit has no output.

XCard is missing or not placed properly in crossover slots.

Low battery voltage or large voltage drops to the amplifier under load.

Signal input switch not configured properly.

XCard is missing or not placed properly in crossover slot.

Signal input switch not configured properly.

Remedy

Readjust input gains of amplifier.

Check system with known working source and repair or replace original source as needed.

Check XCard position and repair or replace as necessary.

Check the alternator, battery, fuse, and power and ground wiring. Repair as necessary.

Check signal input switch and reconfigure for 2-channel input.

Check XCard position and repair or replace as necessary.

Check signal input switch and reconfigure for 4-channel input.

Amplifier Noise

(Turn-on Pop)

Voltage spike from output of preceding component is entering amplifier through input signal.

Voltage spike from remote turn-on lead is entering through REM input terminal.

Disconnect input signal to amplifier and turn amplifier on and off. If noise is eliminated, connect REM lead of amplifier to source unit with a delay turn-on module.

Use a different 12 volt source for REM lead of amplifier. (i.e., battery direct)

If noise is eliminated, use a relay to isolate amplifier from noisy turn-on output.

– 32 –

Symptom

Engine Noise

Diagnosis

Noise is radiating into

RCA signal cable.

Bad component in the signal chain.

Noise is radiating into speaker cables.

Remedy

Check connections, run the

RCA cables on a different route away from sources of high voltage.

Check connections, bypass additional components

(crossovers and equalizers) between the source unit and the amplifier. Connect one component at a time to determine the culprit.

Repair or replace components as necessary.

Disconnect existing speakers and connect a test speaker to the output terminals of the amplifier. If noise is gone, reroute the speaker cables away from sources of high voltage.

Multiple grounds in the audio system.

Ground loop between source unit and antenna.

Check ground connections and connect amplifiers, signal processors, and other components to a central location or try a different grounding point on the chassis.

Check connections, disconnect antenna from source unit. If noise is gone, install an antenna ground loop isolator.

• If noise persists, see your Authorized Rockford Fosgate Dealer.

– 33 –

D

Y N A M I C

P

O W E R

M

E A S U R E M E N T S

About the Dynamic Power Measurements

The Audio Graph PowerCube is a test instrument used to measure the output of an amplifier in accordance with IHF-202 industry standards. The IHF-202 standard is a dynamic power measurement and was developed as a means of measuring power in a manner that best represents the real world operation of an amplifier. Many manufacturers, including Rockford Fosgate, at times will measure amplifier power into a fixed resistor (4 ohm, 2 ohm). While this method is useful in some types of evaluation and testing, it is not representative of an amplifier that is connected to a speaker and playing music.

Music

Music is dynamic; the sound waves are complex and constantly changing. In order to simulate this, the IHF-202 standard calls for the input signal to the amplifier to be a 1kHz bursted tone. This signal is input (on for 20 milliseconds) and reduced 20dB for 480 milliseconds. The signal is gradually increased in level until the amplifier's output exceeds 1% Total Harmonic Distortion (THD). At 1% distortion becomes audible, therefore, any power produced above that level is considered not usable. Many manufacturers represent their amplifiers' output power in excess of 10% distortion. They use many names for this measurement, such as Total Maximum Power or

Maximum Output Power. This is not indicative of the actual usable output power.

Listening to Loudspeakers - Not Resistors

A loudspeaker is not a resistor. A resistor's value (resistance measured in ohms) is fixed. A loudspeaker's impedance is dynamic. It is constantly changing in value, dependent upon the frequency of the input signal. Therefore, measuring power with the amplifier loaded into a 4 ohm resistor is not the same as measuring power with the amplifier connected to a 4 ohm speaker. Most people do not listen to music through a resistor.

A 4 ohm speaker may experience a drop in impedance 4-6 times lower than its nominal (printed) impedance. A speaker will also create phase shifts in the signal that is passed through it. These phase shifts happen because a speaker is an inductor (voice coil) and a capacitor (compliance of the surround/spider), as well as a resistor (voice coil wire).

To simulate a speaker the Audio Graph PowerCube measures output power into 20 different loads. It tests at 8 ohms, 4 ohms, 2 ohms and

1 ohm. Each of these impedances is also tested at –60

°

, –30

°

, 0

°

, +30

° and +60

°

phase angles. These different impedances and phase angles represent the shifts in impedance and phase that can occur in a typical loudspeaker.

– 34 –

Information Cubed

The data acquired in the testing procedure is then graphed in the form of a 3-dimensional cube. Hence the name PowerCube.

The Phase Angle is expressed on the horizontal axis, the Output

Voltage is presented on the vertical axis and the Impedance is displayed on the Z axis. Output Power, in watts, is listed on the left hand side for each impedance at each phase angle.

MODEL BEING

TESTED

AudioGraph – The PowerCube™

VOLTAGE FROM

BATTERY x2 = STEREO

MONO = BRIDGED MONO

Rated Power : 100 W @ 4 Ohms Amplifier:

Serial No:

PUNCH 200ix 14.4V x 2

Owner : ROCKFORD CORPORATION

8

Ω

*

*

*

*

–60

–30

°

0

°

30

°

60

°

4

Ω

–60

°

–30

°

0

°

30

°

60

°

2

Ω

–60

°

–30

°

0

°

30

°

60

°

1

Ω

–60

°

–30

°

0

°

30

°

60

°

°

84 W

84 W

83 W

84 W

85 W

159 W

154 W

153 W

154 W

158 W

266 W

251 W

245 W

248 W

261 W

378 W

343 W

333 W

339 W

373 W

{

POWER

IN

WATTS

–60

°

(Cap)

{

PHASE ANGLES

0

°

• Example of a 200ix PowerCube

(Ind) +60

°

1

Ω

2

Ω

{

Impedance

4

Ω

8

Ω

50V

30V

10V

What is an Amplifier?

An amplifier by definition is a voltage generating device, recreating the signal which is input to it identically but with increased volume.

It will be connected to a reactive load (the speaker). The impedance of this load and phase of the signal passing through the load will vary, dependent upon the frequency of the input signal (music).

Therefore, a perfect amplifier will be able to maintain the same output voltage regardless of load characteristics and will not alter the signal it is reproducing. A perfect amplifier when measured by the

AudioGraph PowerCube would present data that forms a perfect cube. Unfortunately, amplifiers are not perfect. The laws of physics generally prevent it. A great amplifier is about the best one can hope to attain.

As you can see by the PowerCube and as you will experience by listening, your Punch amplifier is a GREAT AMPLIFIER!

– 35 –

400

X 4

S

P E C I F I C A T I O N S

Continuous Power Rating (Competition Standard) – Measured at 13.8V

RMS continuous power per channel, all channels driven into a 4 Ω load from 20-20,000Hz with less than 0.05% Total Harmonic Distortion (THD)

50 Watts

RMS continuous power per channel, all channels driven into a 2 Ω load from 20-20000Hz, with less than 0.1% Total Harmonic Distortion (THD)

RMS continuous power bridged into a 4

Ω

load from 20-20000Hz, with less than 0.1%

Total Harmonic Distortion (THD)

100 Watts

200 Watts

Dynamic Power Rating (IHF-202 Standard) – Measured at 14.4V

2-Channel bridged into a 4

Ω

load per channel into a 2

Ω

load per channel into a 4 Ω load

260 Watts

130 Watts

60 Watts

Signal-to-Noise Ratio (A-weighted) >95dB

Factory Default Crossover Point

Crossover Alignment

Dimensions

100Hz Butterworth

12dB/octave

9 5 ⁄

8

"W x 13 5 ⁄

8

"L x 2 5 ⁄

8

"H

(24.4cm) x (34.6cm) x (6.6cm)

Damping Factor @ 4

Ω

(at output connector) >150

Bandwidth 15Hz-100kHz ± 3dB

Frequency Response

Slew Rate

20Hz-20kHz ± 0.5dB

30 V/ µ s

IM Distortion (IHF)

Input Sensitivity

<0.05%

Variable from 150mV to 3V

Preset at the factory for 500mV

B+ Fuse Size (external to amplifier) AGU 50 amp

Input Impedance 20k ohms

– 37 –

W

A R R A N T Y

I

N F O R M AT I O N

Rockford Fosgate warrants all electronics to the original consumer/purchaser to be free from defects in materials or workmanship for a period of three (3) years.

We will cover parts and labor provided the product was purchased from an

Authorized Rockford Fosgate Dealer. This warranty does not apply to any product on which the seals and/or serial number have been broken, removed, tampered with, defaced or altered in any manner. This warranty only applies to the original consumer/purchaser and is not transferable.

Electronics found to be defective during the warranty period will be repaired or replaced at Rockford Fosgate’s discretion. Repaired or replaced electronics will be covered by the balance of the original warranty period only. Rockford Fosgate shall not be responsible for any incidental or consequential damages resulting from a defect in electronics. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the previous limitation may not be applicable.

The warranty does not cover any appearance item, any cost or expense related to the removal or reinstallation of the product, any accessory used in conjunction with the product, damage to the product resulting from alteration, accident, misuse or abuse, or improper installation. This warranty does not apply if the parts or labor, which would otherwise be provided without charge under this warranty, are obtained from any source other than Rockford Fosgate or an Authorized

Rockford Fosgate Service Center.

This warranty is the only express warranty and does not create any implied warranties. Rockford Fosgate limits its obligations under any implied warranties under state laws to a period not to exceed the written warranty period. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply. This warranty applies only to products sold in the United

States of America or its possessions. For warranty outside the U.S.A., please contact the nearest Authorized Rockford Fosgate Dealer. This warranty gives the consumer specific legal rights, and the consumer may have other rights which vary from state to state.

A defective product must be shipped prepaid to the Authorized Rockford Fosgate

Dealer from which the consumer purchased the product or to the Rockford

Fosgate factory in Tempe, Arizona in the original factory carton or equivalent. Any shipping loss or damage will be borne by the consumer or the consumer’s shipper.

A consumer returning a product to the factory must call (800) 669-9899 for a

Return Authorization Number. All shipments shall be clearly marked with the

Return Authorization Number on the outside of the shipping carton.

Ship to:

Rockford Corporation

Warranty Repair Department

2055 E. 5th Street

Tempe, AZ 85281 U.S.A.

Return Authorization Number:_________________

N

OTES

N

OTES

6/95

MAN-0993-A

Rockford Fosgate

Rockford Corporation

546 South Rockford Drive

Tempe, Arizona 85281 U.S.A.

In U.S.A., (602) 967-3565

In Europe, Fax (49) 4207-801250

In Japan, Fax (81) 559-79-1265