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SQLFW Powered Sub-woofer series
If the vehicle’s source unit does not have current sensing technology
while using the high level source input then connect the
REM
the same
method as the low level input.
Double check all the previous connection installation steps, in particular
the speaker and power wiring. Securely mount the powered sub-woofer. If
everything is in order, reconnect the vehicle’s negative battery connection
and begin following the Feature Setup and Adjustments steps.
Troubleshooting Guide
PROBLEM
CAUSES AND SOLUTIONS
Power indicator is not lit
A. 12 volt wire fuse or sub-woofer fuse is
blown and needs replacement
B. Check remote turn on +12V and GND
connections ensure the ground is secured
to clean metal on the vehicle chassis.
C. Source unit not functioning properly
Power indicator is lit /
There is no Bass
A.
Inputs are not properly connected or
loose. Check and ensure connections are tight
B. Incorrect sub-woofer level control
setting – Check to see if the level is at
minimum
Protection light is on
There could be a possible short in the
speaker connections. Check for proper
speaker connection and ensure there is no
bare or uninsulated wire exposed.
Use a volt /ohm meter to check for
possible shorts in the speaker wiring.
Check the impedance of speakers . If they
are too low this may cause the amplifier
protection light to come on.
Bass sound is distorted
A. Sub-woofer gain control is set too high
B.
Sub-woofer bass control knob is set too high
C. Bass Level is set too high on head unit
