· Mute switch for suppressing switch-on crackle interference
· Low-level outputs (cinch jacks) for connecting additional amplifiers
· Operating display (green LED) and overload indicator (red LED)
3. IMPORTANT INSTALLATION INFORMATION
· This appliance may only be connected to a 12 volt system with negative ground.
· The heat radiated when the amplifier is used means that sufficient air circulation is required
at the place of installation. It is very important that the cooler’s cooler ribs do not contact
any metal plating or any surfaces which could impair air circulation. The amplifier may not
be installed in small confined spaces or spaces without air circulation (e.g. spare wheel
recess or under the vehicle carpeting). Installation in the boot is recommended.
· Install the amplifier in such a way that it is protected as far as possible against vibrations
and dust and dirt.
· Make sure that the input/output cables are sufficiently distant from the power supply cables
as otherwise interference may occur.
· 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. A cable cross-section of at least 10 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.
