Operation Manual

· Make sure that the fuse and operating elements are accessible after installation.

· The appliance’s reliability and performance depend on the quality of installation. Preferably get an expert

to install the system, particularly if you want to install several loudspeakers or a complex multi-way system.

4. CONNECTIONS

4.1 POWER SUPPLY AND AUTOMATIC SWITCHING ON

Important notice: Before commencing the installation, disconnect the plus terminals from the car

battery in order to prevent short circuits.

The power cabling usually installed in on-board car networks is not sufficient for a power amplifier’s demands.

Make sure that the power lines to GND and to the +12 V terminal have been sufficiently specified. Acable cross-

section of at least 20 mm² must be used to connect the battery to the amplifier’s terminals.

First connect the amplifier’s GND terminal to the battery’s minus pole. It is very important that the connection

is good. Dirt residues must be carefully removed from the battery’s connection point. A loose connection may

cause malfunctions or interference noise or distortion.

The +12 V amplifier connection must then be connected with a power cable possessing an integrated fuse to

the battery’s plus pole. The fuse must be located close to the battery, the length of cable from the battery’s

positive pole to the fuse must be less than 60 centimetres for safety reasons. Only insert the fuse when all

installation work, including the connection of the loudspeakers, has been completed.

Now connect the car hi-fi receiver’s remote control connection to the amplifier’s REM control jack. A cable with

a cross-section of 0.75 mm² is sufficient for connecting the amplifier’s REMOTE connection and the control

device.

4.2 AUDIO CABLES

When installing the audio cable between the cinch output of your car receiver and the cinch input of the amplifier

inside your car, the audio and power supply cables should, wherever possible, not be routed along the same

side of the vehicle. We recommend an isolated installation, e.g. routing the power cable through the cable duct

on the left-hand side and the audio cable through the cable duct on the right-hand side or vice versa. This

reduces interference due to crosstalk into the audio cables.

This also applies to the connecting cable for the remote control for regulating the volume. This cable should not

be laid on the side of the power supply leads but together with the audio cable.

4.3 LOUDSPEAKER CONNECTIONS

· The lowest terminal resistance is 1 ohm

· Never connect the loudspeakers’ minus terminals to the vehicle chassis.

· Never connect the +12 V supply voltage to a loudspeaker output as this would destroy the amplifier final

stage.

If the amplifier is operated with lower terminal resistances or incorrectly used as described above, both

the amplifier and the loudspeakers may be damaged. The warranty becomes void in such cases.

5. OPERATING ELEMENTS AND IN/OUTPUTS

5.1 SETTING THE INPUT SENSITIVITY

The input sensitivity may be adapted to any car radio or tape deck. Turn the volume control of your radio to its

central position and then adjust the input-level control (2) to produce an average medium volume. This setting

usually provides sufficient power reserves at optimum weighted noise voltage.

ATTENTION: only reproduce loud test noises briefly to prevent damaging the loudspeakers.