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Input gain(s) for amplifier incorrectly set.
Source unit output too low.
XCards are missing or not placed properly
in crossover slots and/or switches are not
properly selected.
Low battery voltage or large voltage drops
to the amplifier under load.
RCA cable or amplifier connected to Pass-
Thru output is defective.
Readjust input gains of amplifier.
Check system with known working source
and repair or replace original source as
needed.
Check crossover switches and XCard posi-
tions and repair or replace as necessary.
Check the alternator, battery, fuse or circuit
breaker and power and ground wiring and
repair as necessary.
Check connections, substitute with known
working amplifier or cables and repair or
replace as needed.
Low or distorted output from the
Pass-Thru output of the amplifier.
Symptom Diagnosis Remedy
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• If noise persists, see your local Authorized Rockford Fosgate Dealer.
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