AUDIO SYSTEM CO-40.4-M 4x60W RMS Micro Digital Amplifier User Manual

MANUAL
CO-40.4M

CO-40.4-M 4x60W RMS Micro Digital Amplifier

DESIGNED AND ENGINEERED BY AUDIO SYSTEM GERMANY
Congratulation on your purchase of your new C-SERIES amlifier.
IMPORTANT: Before installation your power amplifier, we recommend to read the owner’s manual carefully and to follow the instructions regarding connection and fitting exactly.
ATTENTION: Pay attention to advices and instructions of the car manufacturer.
IMPORTANT: Your proof of purchase is evidence of warranty claim for repair or replacement. Keep your proof of purchase, manual and original packaging. ATTENTION: Use of sound components can impair your ability to hear necessary traffic sounds and may constitute a hazard while driving your automobile.
AUDIO SYSTEMGERMANY accepts no liability for hearing loss, bodily injury or property damage as a result of use or misuse of our products. We recommend installing the equipment by an authorized service center or dealer. A professional fitting and connection is the requirement for further warranty and perfect sound.

FEATURES

– 4-Channel-Mini-Amplifier
– Stable into 2 Ohm Stereo per channel
– Extreme high input sensitivity from 0,1 to 13 V
– Multi-Way Protection Circuitry: overheat, over load and short circuitry protection
– Full-Active-Mode possible
– High level input with automatic activation of the power amplifier
-AUX input with automatic switch-on or cinch input

SPECIFICATIONS

Power Supply………………………………………………………………………………… 10 – 16 V
Voltage Rated Power Output at 14,4 V
– RMS power @ 4 ohm stereo……………………………………………………… 4x 40 W
– RMS power @ 2 ohm stereo……………………………………………………… 4x 60 W
Signal to Noise Ratio…………………………………………………………………… > 88 dB
Low Pass Filter (LPF) Channel 3+4……………………………………………. 80 oder 1500 Hz
High Pass Filter (HPF) Channel 1+2………………………………………….. 80 bis 4000 Hz
Frequency Response…………………………………………………………………… 35 Hz — 20 KHz (+/-1 dB)
THD@RMS Watts at 4 Ohm and 1/2 rated power…………………….. < 0,03%
Channel Separation……………………………………………………………………… 65 dB
Fuse Rating…………………………………………………………………………………. lx 20A
Input Sensitivity…………………………………………………………………………. 100 mV — 13 V (+/- 5%)
Dimensions……………………………………………………………………………….. 123(L) x 45(H) x 80(W) mm

POWER CONNECTION

1. Battery disconnection First disconnect the power supply of the vehicle. This works out the best by removing the ground cable of the battery.
2. Ground connection Connect the GND (ground) connection of the amplifier with the car chassis. Keep this cable as short as possible (not longer than 50 cm) and use a suitable cross section (AWG sice 6 – 10). Make sure, that the connection with the vehicle chassis is free of paint, dirt and dust.
3. +12 V Power connection: Connect the +12 V contact of the amplifier with the supply cable via a fuse directly to the vehicle battery. Keep in mind, that the length of the cable from fuseholder to vehicle battery has to be a maximum of 30 cm. Requirement for a perfect function of the amplifier is a qualitative high end fuse holder as well as a suitable cable cross section (AWG sice 6 – 10). This fuse protects the amplifier and the vehicle against the possibility of a short circuit in the power cable.
4. Remote connection (optional): You can optional connect the REM-terminal of the amplifier to the remote-output (automatic 12 V antenna-output) of the head unit. Therefore use a 0,5 -1,5 mm power cable.
5. Input: Please connect the amplifier directly to the speaker or amplifier outputs of the orininal radio (OEM) and select ,,HI” at input mode switch. The amplifier will turn on auto-matically. If you want to use RCA low level input select „LOW” at input mode switch and connect RCA output of radio to input using a HLAC REVERSE 4 (optional).

Caution
Please take the following precautions when installing your amplifier:
a) Take extra care when making the connections. Make sure that no electrical cable, gas tank, hydraulic brakes or other components get damaged.
b) Allow enough cooling and air circulation and avoid installing the unit in small closed boxes or close to parts that heat up easily.
c) Keep the amplifier away from liquid, moisture, heat and foreign materials.
d) This amplifier can only be used in vehicles with 12V DC power supply.
e) Never install the power supply cable with other original vehicle wires (gas cables), fan motors, control modules etc.
f) Install the signal cable (cinch cable) as well as speaker cable far away from the power cables to avoid interference with music signals.
g) To avoid dangers of cables binding, squeezing or breaking, use the cables supplied with your amplifier.

SPEAKER CONNECTION

The CO-40.4 M offers MAIN input, which is connected by High or Low Level to the output of the head unit and an AUX input, which is connected by a 3.5mm jack to an AUX source. If the amplifier detects a signal at AUX it will automatically turn on. Priority 1 is always the AUX input. If there is any signal detected at AUX the amplifier will play the AUX source through the outputs. The amplifier will turn on automatically when using High Level input, AUX input or Low Level input with remote and the power LED will light up. You are able to adjust the sound and volume by using the gain controller and crossover controllers/switches.
In this regard, AUDIO SYSTEM GERMANY recommends to adjust your amplifier through a specialized service center, dealer or a specialist.

TROUBLE SHOOTING

This power amplifier is featured with a efficient protection system to prevent any damages like overheating, overvoltage and short-circuit. In order to check the problem, first turn down all levels of the head unit, afterwards turn it off.

AMPLIFIER IS NOT POWERED UP, NO LED IS LIGHTENING| – ground connection professional connected?
– +12V powercable professional connected?
– remote cable professional connected?
– fuses inserted and alright?
– analyze voltage on the amplifier.
– signal is presented?
---|---
NO SOUND| – cinch cable alright and professional connected? – loudspeaker professional connected?
– head unit alright?
– signal is presented?
OVERHEATING| – impedance alright?
– loudspeaker error?
– adequate airflow of the amplifier?
! CAUTION !
After cooling down, the amplifier turns on automatically.
ERROR IN AMPLIFIER FUSE| – ground professional connected?
– loudspeaker impedance alright?
! CAUTION !
Make sure when changing fuses to use the same value.
SOUND TOO LOW OR LOW-DISTORTED SOUND| – input level control -GAIN” is set to match the head unit?
– output level control of the head unit alright?
– loudspeaker error?
– loudspeaker cable checked?
– crossover frequencies has been properly set?
(Check head unit, amplilfier, DSP, sound processor, equalizer, frequency bandpassfilter…)
HIGH HISS-ENGINE NOISE IN SPEAKERS| – ground connection professional connected?
– short-circuit caused by loudspeaker cable with vehicle chassi (ground)?
– cinchcable (RCA) and/or loudspeaker cabel installed too close to the power connection cable?
– cinch ground (RCA) of the head unit alright?

CAUTION
Please contact your specialist dealer if the amplifier is still not working after it has been checked with the error list! For warranty adjustement / repairs the original invoice has to be attached! Opening the power amplifier is leading to a lost of warranty in either case!

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