NO SOUND Is the LED lit?
YES NO
Check Power and Remote turn-on
wire for voltage. Make sure Ground
wire is secure.
STILL NO SOUND
See your Authorized PrecisionPower Dealer or call 1-800-62POWER.
SOUND IN ONE CHANNEL ONLY
Reverse left and right speakers by unplugging the speaker connector, turning it
over and plugging it back in.
SOUND IS NOW IN
OPPOSITE CHANNEL SAME CHANNEL
Reverse RCAinputs Problem is in the speaker or
speaker wire of the silent channel
SOUND IS NOW IN
OPPOSITE CHANNEL SAME CHANNEL
Reverse RCAs at head unit Problem is in the Amplifier. See your
local Authorized PrecisionPower Dealer
or call 1-800-62POWER.
SOUND IS NOW IN
OPPOSITE CHANNEL SAME CHANNEL
Problem is in the head unit Problem is in the RCAcables
or before the amplifier
20 9
All two-channel PCX™ amplifiers are capable of being bridged into a 4 ohm mono
output without switches or bridging modules. This feature permits the creation of
a mono channel for a subwoofer or center channel. Deriving the mono channel
is accomplished by using the Left Channel Positive wire ( L + ) as the positive speaker
wire and the Right Channel Negative wire (R-) as the negative speaker wire.
N O T E : It is important that a minimum 4 ohm impedance is observed. If the
impedance drops below 4 ohms while the amplifier is wired in the bridged
configuration, the amplifier's protection circuitry (AM-V) may engage.
The ability to run stereo speakers while simultaneously running a mono output
from the same amplifier is accomplished by running the stereo speakers normally
and tapping into the appropriate wires for the "mixed mono" channel (left channel
positive for the positive speaker wire and right channel negative for the negative
speaker wire). Speaker impedance should be no lower than 2 Ohms on the stereo
channels and 4 ohms on the mono channel.
NOTE: Passive crossovers must be used for "mixed mono" operation. Choose a
low pass crossover around 100Hz for your subwoofer, then choose a high pass
crossover for your stereo channels. The high pass crossover must be at the same
or slightly higher frequency than the low pass crossover to maintain the correct
impedance. See your PrecisionPower dealer or call 1-800-62POWER for more
information about passive crossovers.
Both excessive temperature and low impedance (or short circuit) conditions will
activate the amplifier's A M - V protection circuitry, which turns down the amplifier's
output. When the amplifier cools down, or the impedance is corrected, the A M - V
will restore full power. If your amp is turning down, check your speakers and wiring
for low impedance and short circuits. Also, ensure that there is nothing blocking
the normal convective airflow of the amplifier. No obstruction should be within 2"
of the amplifier on all sides.
NOTE: Low battery voltage will cause the amplifier to run warmer and
possibly damage the amplifier.
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