8
• Re-adjust the Input Level Control to better suit the input signal.
Weak output
• If the noise is a “whine” whose pitch follows the engine speed,
confirm that the amplifier and any other signal sources (head unit,
equalizer, etc) are properly grounded.
• If the noise is a “clicking” or “popping” noise whose rate follows the
engine speed, this usually means that the vehicle is equipped with
resistor spark plugs and wires, or that the ignition is in need of service.
• Check the routing of the speaker and input wires to make sure they
are not adjacent to wires which interconnect with lights and other
accessories.
• If the above steps fail to improve or clear noise interference, the
system should be checked by a authorized RE Audio Dealer.
Noise in the audio
• Confirm that all terminal strip connections are secure and tight.
• Check the “BALANCE” control on the head unit (or other source) to
verify that it is set to its mid point.
• If you are using the low-level RCA input, reverse the input plugs at the
amplifier (switch the R with the L). If the channel which is silent
switches to the other side, the problem is either in the head unit/other
source or the connecting cables.
Only one channel works
• Confirm that all terminal strip connections are secure and tight.
• Check both in-line and built-in fuses.
• Confirm that the audio signal source (car radio, equalizer, etc) is
connected and is supplying output signal. To check if the amplifier is
supplying signal, unplug the RCA cables from the signal source (but
leave them plugged into the amp) and briefly tap the center pin of each
of the disconnected RCA plugs with your finger. This should produce a
noise (feedback) in your speakers.
No Output
Before removing your amplifier, refer to the list below and follow
the suggested procedures. Always test the speakers and their
wires first.
3
WIRING INSTRUCTIONS
The battery terminal(+12V) must be connected directly to the positive terminal of the
vehicle’s battery to provide an adequate voltage source and minimize noise. Connecting
the battery terminal lead to any other point(such as the fuse block) will reduce the power
output and may cause noise and distortion. Use only 8 AWG or thicker(smaller AWG) wire
for this lead and connect it to the terminal of the battery after all other wiring is completed.
Power Connection
The ground terminal(GND) connection is also critical to the correct operation of the
amplifier. Use a wire of the same gauge as the power connection(8 AWG or thicker) and
connect it between the ground terminal(GND) of the amplifier and a metal part of the
vehicle close to the mounting location. This wire should be as short as possible and any
paint or rust at the grounding point should be scraped away to provide a clean metal
surface to which the end of the ground wire can be screwed or bolted.
Ground Connection
The amplifier is turned on by applying +12V to the remote turn-on terminal(REM).
The wire lead to this terminal should be connected to the “Auto-Antenna” lead from the
head unit. If the head unit does not provide an “Auto-Antenna” lead, the remote turn-on
lead may be wired to an “Accessory” or “Radio” terminal in the vehicle’s fuse block. This
will turn the amplifier on or off with the ignition key regardless of whether the head unit is
on or off. The remote turn-on lead does not carry large currents. So 20 AWG wire may be
used for this application.
Remote Turn-on Connection
Depending on the type and number of speakers, connect them to the speaker terminals
as shown in the appropriate wiring diagram. For most applications, 16 AWG wire would
be adequate, but in no case thinner than 18 AWG. For leads more than 10 feet long, 14
AWG is recommended. When wiring the speakers, pay special attention to the polarity of
the terminals. Do not ground any speaker leads to the chassis of the vehicle.
Speaker Connection
Caution! Use either the low-level or high-level inputs on the amplifier. Do not use both at
the same time. If the head unit does not provide low-level outputs, the amplifier may be
connected via the speaker(high-level) outputs from the head unit. Wire the speaker leads
from the head unit to the 5-pin adaptor harness as shown in the diagram(shielded cable
is not required) and plug the connector into the input connector on the amplifier. Carefully
splice and insulate all wire connection.
Input Connection
