Controls - Audiopipe APSM-1300 Owner's Manual

1 Speaker connection
Never connect the speaker cables with the chassis ground. This may destroy your
amplifier. Check that your speakers are connected correctly which means plus to plus
and minus to minus.
We recommend speaker cable from 2.25 mm to up. The connection ways are shown
in the attachment.
2 BATT+
Battery + terminal. The +12 Volt power cable must be connected with a fuse in line
near the battery + terminal. Please see the table of cable and fuse selection.
3 REM
Remote terminal. The remote cable must be connected with the radio remote terminal
so that the amplifier will switch on and off automatically with the radio.
If there are two or more amplifiers installed together, it might be necessary to add an
additional relay. Please consult your dealer.
4 GND
Chassis ground terminal. The chassis ground cable must be connected very tight on
a nearby massive and electric conductive place.
5
Gain
Gain control regulates the sensitivity of the amplifier to match the signal output voltage
of your source unit. The gain control is not a volume adjustment. Use high quality CD
music and increase the volume of your source unit to 75% of its minimum volume,
set the gain at the minimum and then increase gain slowly (clockwise). Stop at the
first sign of distortion, then lower the gain a little (counter clockwise) to achieve clear
undistorted music at the maximum level.
6 Remote Bass Level Control
When using the remote bass level control you can adjust volume in the driver seat.
7 RCA audio input
These RCA audio inputs connect with your radio RCA outputs. Please use high quality
RCA cables. Keep these cables as short as possible. To avoid electrical disturbances
from your car electronics, route RCA cabloes away from other current carrying cables
in the car. If your radio has only speaker output, you must use a HIGH LOW LEVEL
adaptor.
8 Bridge in
This RCA jack receives signal from the master amplifier when this amplifier is bridged
as slave. DO NOT use input jacks when the amplifier is working as slave. All the
functions will be adjusted by the master amplifier.
9 Bridge out
This RCA output sents out bridged signal to another same Class D amplifier in bridging
configuration.