Problem
Possible Cause
Solution
How to properly set
input sensitivity
Please refer to Appendix A to set the
input sensitivity for maximum, low-
distortion output.
Amplifier doesn’t
turn on
Faulty fuse
Remove fuse and check with continuity
meter. Replace if necessary.
Poor connection
integrity
Check “+12V”, “Ground”, and “Remote”
leads for pinched wires; ensure tight
connections.
Insufficient “Remote”
input
Make sure there is a suff12V
supply at the “Remote” connection; if
not a relay may be required.
Intermittent output,
fluctuates when I tap
on it or hit a bump
Poor connection
integrity
Make sure insulation has been properly
stripped back at connection points for
good contact area.
Make sure input connectors are making
good contact with input jacks of the
amplifier.
Distorted, attenuated,
or popping sound
Faulty speaker
connection (Short
Circuit / Over Current
Protection)
Inspect speaker wires for possible
short-circuit, either together or shorted
to the vehicle’s chassis ground.
Check the nominal load impedance at
the amplifier is equal to or greater than:
Ch.1 & 2:
2 ohms stereo
Ch.1 & 2:
4 ohms bridged
Sub Ch.:
2 ohms
Output shuts off after
a while
Overheating
condition (Thermal
Protection)
Make sure amplifier mounting area has
adequate space for ventilation and heat
dissipation.
No or low subwoofer
output
Remote Bass
Control (optional)
is connected and
turned down
Adjust RBC-1 or M-RBC-1 accordingly
Troubleshooting
