B2 Audio M1u Owner's Manual

Add to my manuals
10 Pages

advertisement

B2 Audio M1u Owner's Manual | Manualzz

MODEL: M1u Product id:M1UD13

M1u

OWNER’S MANUAL

Foreword

We thank you for purchasing our amplifiers. Your decision to be part of something different is what we strive for. Our products reflects who we are, going to the extent to deliver you our finest comes natural.

Our amplifiers are engineered to accomondate a variety of applications.

Whether it is SPL or SQ, the sound provided will be clean & dynamic.

We refer to it as SQL audiophile products, based on optimizing every aspect of the amplifier to have the highest possible efficiency, while minimizing distortion, causing less stress on the audio reproduction and increasing the Sound Quality & output performance.

For continious news & updates feel free to visit at www.facebook.com/b2audio / www.youtube.b2audio / www.b2audio.com

To obtain the full potential of the amplifier & to minimize failure, it is strongly recommended & necessary to upgrade the stock electrical system.

Ensure the system is in accordance with the full performance of the amplifier. It is therefore essential to read through the whole manual.

Better Bass

Better Bass is our philosophy of adding something extra.

Keep in mind that continious exposure to SPL above 100 dB can seriously damage your hearing. Today’s high power auto sound systems can easily produce SPL over 140 dB. Enjoy your music with sense.

Table of contents

1. Design features ....................... 3

2. Panel layout ............................ 4 - 5

3. Installation ............................. 6 - 8

3.1 Installation considerations ...... 6

3.2 Power connectors .................. 6

3.3 Wiring layout ........................ 7

3.31 Speaker wiring diagram ....... 8

4. Troubleshooting ...................... 9

2

1. Design features

M1u

Circuit Configuration

Frequency Response

Signal to Noise Ratio

Input Sensitivity

Input Level Selector

Crossover

Low Pass Crossover Range

Subsonic Crossover Range

Bass Boost

HI-EF Class D Mono

: 15 Hz ~ 250 Hz

: 100dB

: 6V ~ 0.2V

: -

: 24dB / Oct

: 35 Hz ~ 250 Hz

: 10 Hz ~ 50 Hz

Bass Boost frequency

: 0 ~ 9dB

: 45 Hz

Phase : 0 ~ 180

Remote Control w/clip indicator

Damping Factor

Power Terminal gauge

Fuse Rating

:

: 300>

: 0 ga x 3

: 850A

All features are subject to change in the continuing effort to improve the products without notice.

Specifications

Continious output power rating (RMS)

M1u

Power @ 2 Power @ 1

(12V < 1% THD)

Power @ 4 Power @ 2 Power @ 1

(14,4V < 1% THD)

2800 W x 1 5300 W x 1 9900 W x 1

Power @ 4 Power @ 2 Power @ 1

(16V < 1% THD)

3300 W x 1 6300 W x 1 11500 W x 1

Specifications (detailed)

1) The M1u operates stable @ impedances of minimum 1 mono.

- Running the amplifer at that impedance sets requirements to both ventilation & the battery system.

Operation below minium impedance will void the limited warranty

*

2)

3)

4)

5)

The amplifier has a 4 stage advanced protection circuit;

-Thermal protection, Voltage sensors, DC offset & short circuitry via speaker outputs.

The M1u utilizes a double sided SMD pcb & high current mosfet switching devices in both the in- and output stage.

A wired remote level control with clip indicator is included with the amplifier.

- This unit will enable remote gain adjustment.

The crossovers of the M1u are variable 24 dB/octave filters for both low pass & subsonic.

* LIMITED WARRANTY INFORMATION

B2 audio offers a limited warranty under the following terms:

The product is to be free of defects in material & workmanship under normal use for a period of 1 year from the date of the original purchase, when installed by an authorized dealer. Items not installed by authorized dealers will be warrantied for 30 days from the original purchase. Original sales receips must be accompanied with all returns.The warranty applies to the original purchaser of the product & it being sold by authorized B2 audio dealers.

The warranty does not cover: 1. Damage caused by accident, abuse, misuse, improper operation, water / solvents & shipping.

2. Product modification, neglect, failure to follow installation instructions & misrepresentation by the seller.

3. Products used for competition purposes or are of such a charachter 4. Any product that has been opened.

5. Products that has had the serial number defaced, altered or removed.

6. The cost of shipping the product back for repair to an authorized repair centre & cost of return of non-defective items.

3

2. Panel layout

M1u

SWEET LIKE DANISH

INPUT

Signal input from the head unit. A minimum level input of 0.2V is essential for correct operation.

BASS BOOST

Variable bass boost with 0-9dB @ 45Hz.

POWER & PROTECTION INDICATOR

Power LED, Blue-lit shows correct operation.

Protect LED, Red-lit shows general malfunction, faulty connection or thermal protection.

GAIN (6V ~ 0.2V)

Matching of the output voltage from the head unit’s

RCA line-outs to the input section.

SUBSONIC FILTER (10Hz ~ 50Hz @ 24dB/Oct)

Adjusts the subsonic cut off point to eliminate frequencies within the filter’s range.

SPEAKER OUTPUTS

Amplifier connection to the loudspeakers.

Minimum speaker cable is 12 gauge.

Minimum impedance for the M1u is 1 if used as a single unit.

In a daisy chain configuration the minimum

impedance is 2 .

LOW PASS FILTER (35Hz ~ 250Hz @ 24dB/Oct)

Adjusts the cut off point for the low pass filter within the filter’s range.

PHASE CONTROL

Variable phase adjustment from 0-180 degrees.

REMOTE LEVEL CONTROL PORT

Connection of external level control.

(The Better Bass Remote can be connected for additional features).

OUTPUT MASTER / INPUT SLAVE

For daisy chain connection of 2 M1u amplifiers.

Minimum impedance is 2 .

.

4

2. Panel layout

M1u

GND (GROUND CONNECTION)

For connection to the chassis’ ground.

For optimum performance 0 gauge cable is

+12V (POWER CONNECTION)

For optimum performance 0 gauge cable connected with cable of equal length.

REM (REMOTE)

Connect to switched +12V from the head unit.

CAUTION

Installation of the amplifier shall be done in the following steps.

1. Ensure the ground is appropriate, then connect it to the amplifier. 2. Connect the +12V wire, keep in mind this wire has to be fused at the battery as well. Ensure all input terminals are used

& that fusing is needed at the amplifier also. 3. Connect the switched remote. 4. Reattach the negative wire (ground) to the battery. 5. Operation over 16 V will caust the amplifier to go into protect & will eventually void the warranty!

5

3. Installation

3.1 Installation considerations

If you choose to install the amplifier by yourself, please read the owner’s manual carefully.

Before you start your installation, please take all steps into consideration.

If in doubt, please go to www.b2audio.com for authorized distributors / dealers that will be able to

configure your set up & ensure the warranty of your amplifier.

Preparation

Disconnect the negative (-) battery cable before mounting or making any connection.

Check the battery & alternator ground (-) connection. Make sure they are properly connected / dimensioned

& free of corrosion. Before selecting a mounting location for the amplifier, please take cooling & safety

into consideration. Avoid areas with excessive vibration & up side down installation which can damage the amplifier.

Our amplifiers have been designed with a good heat dissipation heatsink.

In order to avoid excessive heat from the amplifier, it is recommended to find a mounting location

that allows for vertical positioning of the heatsink fins. Inappropriate mounting will void the warranty!

For safety purposes, install the amplifier in a dry and well ventilated location and make sure no cables

or other harness of the car is interfaced with the mounting location or will present a hazard to the car’s

cables, control cables, fuel lines / tanks, hydraulic lines or other components of the vechicle.

Power connectors

12V (Power connection)

Before mounting the amplifier, disconnect the negative (-) wire from the battery to protect any accidental damage to the amplifier or the audio system. The amplifier is equipped with 0 AWG power & ground terminals. It is crucial that all terminals are used with the adequate cable to ensure correct operation.

Connect the power cables to the power terminal labeled as +12V.

The M1u is not equipped with fuses, so fusing at the battery as well as the amplifier is required.

Connect one end of the fuse holder to the power cable and the other end of the fuse holder to the positive battery terminal within 20 cm / 8’’ of the same cable.

This fuse location will protect the system and the vehicle against the possibility of a short circuit in the power cable. Make sure that the fuses and the fuse holder is adequate for the desired application.

Once all cables (pos & neg) are connected to the amplifier, then reattach the negative wire to the battery (final step).

GND (Ground connection)

Locate a secure grounding connection as close as possible to the amplifier.

Make sure the location is clean and provides a direct electrical connection to the chassis of the vehicle.

Connect one end of an equal sized cable as the positive cable to the location of ground.

It is important that the ground cable is as short as possible, but no longer than 50 cm / 20’’ at maximum.

Run one end of the cable to the grounding point.

Run the other end of the cable to the mounting location.

Connect the ground cable to the terminal labeled as GND.

REM ( REMOTE CONNECTION )

Run a remote turn on cable from the switched +12V source.

This may be a toggle switch, a relay, the source unit's remote ouput cable or power antenna trigger cable.

Connect the remote turn on cable to the power terminal labeled as REM.

6

3.3 Wiring layout

+12V, GND, REM connection chart

M1u

Remote turn on

Head unit

*

* Keep GROUND of equal length.

This drawing is for illustration purposes only!

850A (External fuses)

We recommend using 12 AWG speaker cables to obtain intended performance.

Run 12 AWG speaker cables from your speakers to the amplifier’s mounting location.

Keep the speaker cables seperate from the power cables and and the amplifier’s input cables.

Use grommets where the cables have to penetrate the vehichle’s chassis.

Connect the speaker wires according to the terminals on each speaker.

Strip 1cm, 3/8" of insulation of the end of each cable and twist the cables strands together tightly.

Make sure there are no stray strands that might touch other cables or terminals and cause a short circuit.

Crimp spade plugs over the cable ends or tin the ends with solder to provide a solid terminal.

Connect the cable ends to the amplifer as shown in the speaker wiring diagram.

7

3.31 Speaker wiring diagram

M1u

SWEET LIKE DANISH

CAUTION

The minimum impedance as 1 unit is 1 .

In a daisy chain configuration the minimum

impedance is 2 .

Head unit

MASTER AMPLIFIER

SWEET LIKE DANISH

Daisy chain connection allows linking of 2 M1u amplifiers to work as 1 single amplifier.

Please read the following connection diagram cautiosly to ensure the correct connection.

Step 1. Connect the master

and input slave switch to output master position.

Step 2 . Connect the master and slave

in the diagram.

Step 3 . Set slave M1u

M1u amplifier to the head unit and set its output master

M1u amplifier in daisy chain Rca jack as shown

amplifier output master & input slave switch to

Step 4 . Connect speaker cable (+) on master

Step 5. Connect speaker cable (+) on slave

Step 6 . Connect speaker cable (-) on master

M1u

M1u

M1u slave input

amplifier to subwoofer (+)

amplifier to subwoofer (-)

position.

amplifier to speaker cable (-) on slave amplifier.

SLAVE AMPLIFIER

SWEET LIKE DANISH

Speaker Impedance 1~8 ohms

Speaker Impedance 2~ 8 ohms

8

4. Troubleshooting

The protection circuits of the amplifier prevents severe damages from faulty conditions & improper use.

The protection indicatior will switch on due to short circuit connection & speaker overload, thus the amplifier will be turned off.

Prior to inspecting the occurred problem, turn all levels down & all power off, then carefully check the installation for wiring mistakes, shorts or faulty ground (GND). If the amplifier shuts down due to excessive heat, the protection indicator will light up; please allow time for the unit to be cooled off. Before removing your amplifier, refer to the list below and follow the suggested procedures step by step. If not at ease, contact an authorized installer which can assist you.

AMPLIFIER DOESN’T TURN ON

Measure voltage on the +12V terminal.

Ensure that the remote terminal has min. 13.8 V DC remote connection.

Recheck the ground (GND) connection. Inspect the in-line fuses.

Check the protection LED is not on.

Check shorts on speaker wires & the connected load / impedance. Check power cables & GND.

Disconnect the speaker cables and reset the amplifier.

High / Low voltage, operation voltage is 9 V ~ 16 V. Voltages beyond this will cause the amplifier to go into protect.

FUSE BLOWING

Measure the speaker impedance & that it is in accordance with the configuration.

Inspect the power cable for shorts along with vehicle chassis.

OVERHEATING

Measure the speaker impedance & that it is in accordance with the configuration.

Check speaker shorts.

Ensure airflow around the amplifier is sufficient & that the amplifier is not installed in areas of excessive vibration & upside down!

AUDIO OUTPUT INSUFFICIENT - DISTORTED SOUND

Ensure that the gain settings on the amplifier is matched with the output level of the head unit.

Adjust the head unit volume.

Check speaker shorts.

Adjust the crossover frequencies in accordance with the setup.

If no output at all, check the RCA connections & the cable itself.

TURN ON THUMP

Disconnect the signal input to the amplifier, then turn it on and off.

a) If the noise is cancelled, then connect a delay turn on module on the REM wire running from

the source unit to the amplifier.

b) Use another 12V source for REM lead to the amplifier. If the noise is cancelled, use a relay

to isolate the amplifier from the turn on thump.

HIGH HISS-ENGINE NOISE IN SPEAKERS

Ensure that all signal transferring wires (RCA, speaker cables etc) are kept seperately / away from

the power and the ground wires.

Bypass all electrical components between the Head unit and the amplifier.

Connect the Head unit directly to the amplifier’s input. If the noise is eliminated, the unit bypassed

is the one causing the noise.

Remove the existing ground wires for all electrical components installed. Ensure that the point of

ground is 100% metal which has been grinded free of rust, paint etc.

Replace the ground cable from the OEM battery / alternator and ensure it is grounded accordingly.

Test the battery and alternator load (can be carried out by a professional).

Ensure that the vehichle’s electrical system is in a good condition, this includes distributor, alternator,

spark plugs / wires, voltage regulators etc.

Feel free to visit us at: www.b2audio.com & www.facebook.com/b2audio

10

LIMITED WARRANTY INFORMATION

B2 audio offers a limited warranty under the following terms:

The product is to be free of defects in material & workmanship under normal use for a period of 1 year from the date of the original purchase, when installed by an authorized dealer. Items not installed by authorized dealers will be warrantied for 30 days from the original purchase. Original sales receips must be accompanied with all returns.The warranty applies to the original purchaser of the product & it being sold by authorized B2 audio dealers.

The warranty does not cover: 1. Damage caused by accident, abuse, misuse, improper operation, water / solvents & shipping.

2. Product modification, neglect, failure to follow installation instructions & misrepresentation by the seller.

3. Products used for competition purposes or are of such a charachter 4. Any product that has been opened.

5. Products that has had the serial number defaced, altered or removed.

6. The cost of shipping the product back for repair to an authorized repair centre & cost of return of non-defective items.

advertisement

Was this manual useful for you? Yes No
Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Related manuals

Download PDF

advertisement