Troubleshooting
Amplifier will not power up.
Check for battery power at amplifier’s
power terminals.
Check for voltage at REMOTE terminal
must be greater than 3 volts
Make sure protection LED is off. If it is on,
turn the amplifier off for 5 seconds and
then power up again. If LED comes on
Again refer to notes below.
Amplifier gets hot
The amplifier is OK if you can keep your hand
on the chassis with no discomfort.
Make sure the speaker impedance is correct.
High “hiss” heard in speakers
Remove the RCA plugs from the amplifier.
If hiss disappears the problem is the source.
Set the amplifier’s level control as insensitive
as possible.
It is best to drive the highest signal level from
the head unit as possible. The higher this signal
level the better the subjective S/N ratio is.
Protection LED comes on
Remove speaker connections from amplifier.
Turn amplifier off for 5 seconds.
Turn on again, if LED is off the problem is with
the speakers. Check for shorts on the cables
and on each speaker.
If the LED comes on, the amplifier is faulty.
Engine noise
Check spark plug wires.
Check that RCA cables run away from power
cables.
Use only high quality RCA cables.
Alternator whine
Check grounding of head unit.
Run head unit’s +12 connections directly to
the b12v terminal.
Make sure all ground connections are rust free.
Check that RCA cable grounds are not shorted
to the chassis in their run from the amplifier to
the head unit.
Disconnect the RCA cables from the amplifier.
If whine disappears the problem is upstream.
Sound is distorted
Check RCA cables for shorts
Check speakers and cables
Check amp level is matched to that of head unit.
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