User Manual

CO-40.5 DSP-BT

1. Disconnect battery

Connect the +12 V contact of the ampliﬁer with a

power cable via a fuse to battery directly.

Attention: The cable length between car battery

and fuse holder must not exceed 30cm! Please also

Connect the GND (ground) connection of the

ampliﬁer with the car chassis. Keep this wire as

short as possible (not longer than 100cm) and use

a suitable cabel cross section (AWG 13 - AWG 9).

First disconnect the power supply of the vehicle.

Best way is to remove ground connection of the

battery.

3. +12 V power supply

2. Ground connection

Please make sure that the connection point to

chassis is clean, no paint on (sand if necessary) and

dust free.

use a suitable cable cross section and fuse.

The AUX 2 input uses a 6 pin connection for specialized Audio System accessories.

Please contact your local dealer for more details.

5. Signal input: You can use speaker outputs of headunit or RCA low-level outputs of headunit for

this ampliﬁer. Please note not to connect both inputs at the same time.

4. Remote connection: If using the Low-Level (RCA) inputs of the amplifer you have to also

connect the remote input to the ampliﬁer turn on output or electrical antenna output of your

headunit. Details can be found in your headunit‘s manual.

6. AUX-inputs: The ampliﬁer has 2 different AUX inputs. AUX 1 use 3.5mm jack to connect to

external sources. This input has an integrated signal detection to turn on amplifer.

LOW-LEVEL

HIGH-LEVEL

7. Pre-Out: The ampliﬁer has a 2-channel pre-out to connect further ampliﬁers.

8. Speaker outputs: The CO-40.5 DSP-BT has 5 ampliﬁed speaker outputs. The speaker

impedance of each speaker must not fall below 2 Ohm.

2. AMPLIFIER

(optional)

Connections

DSP CONTROL APP

Speaker impedance 2 ~ 4 Ohm

CONNECTIONS

All settings of the ampliﬁer can be accessed by the Audio System DSP Control app. This

software is under ongoing development and can be found at www.audio-system.de/dsp/

BATTERY

FUSE

GROUND

REMOTE OUT

HEADUNIT