DLS Svenska AB DLS CA12 User Manual

RCA input and output
High level input with auto start
Continuous variable low pass crossover
Continuous variable subsonic crossover
Phase control  cont. variable 0-180 degrees
Electronic protection circuitry against
short-circuit, DC offset and thermal overload.

Before you begin you need to read the manual, to have
some tools, cables and other material available. There
is one such list of material on the following page.

 Important
 Allow air circulation around the amplifier.

2

Before starting the instal-
lation, always disconnect
the negative terminal of
the battery.

The DLS Classic series of amplifiers have a
compact design that allows great flexibility in
mounting. You can mount it under a seat or in the
trunk.
When you select a location, do remember that the
amplifier generates a lot of heat.

Choose a location where air can circulate freely
around the amplifier. Do not cover the amplifier with
carpets or hide behind trim panels.
Do not mount the amplifier in an inverted or upside
down position.

Check all locations and placements carefully before
making any cuts, drilling any holes or making any
connections.
This is the best direction to
mount the amplifier to get
the best cooling.

The DLS logo on top of the amplifier is attached
with two hex. screws. The logo can be removed
and twisted 90 or 180 degrees,  and then screwed
back in wanted position. The logo can be mounted
in four different ways to match your installation.

If problems occur during the installation, or later,
this guide might help you to find out whats´s wrong.

1. Check power lead, ground and connections at
     the amplifier using a multi meter.
2. Check the battery terminal connections.
3. Check the power lead fuse or circuit breaker. If
     fuse damage continues, inspect the power lead
    for short circuits.
4. Check the amplifier protection fuses. Are these
    broken change to new ones with the same value.
    If short circuiting continues, contact your local
    DLS dealer. A fault may exist in the amplifier.
5. To start the amplifier requires a remote voltage
    of 9-15 volt. Check the voltage with a multi meter.

One or more speaker cables are shorted. Make an
insulation test with a multi meter. The cables must
not have a connection to earth.

The amplifier is overheating due to inadequate venti-
lation. Check mounting position is free from
obstruction.

Do this:
1. Move the amplifier to a place with better ventil-
    ation.
2. Install one or two fans to cool down the heat-
    sink.
3. Overheating can also be caused by an
    impedance load below the level permitted.

Check the following:
1. Speaker cable connections to both amplifier and
    subwoofers.
2. Signal lead plugs and cables.