Troubleshooting
Problem Cause
Solution
No LED indication
No +12V at remote connection
12V to terminal
No +12V at Power connection
12V to terminal
Insuffi cient ground connection
Verify ground connection
Blown power fuse
Replace fuse
Power LED on, no output
Volume on source unit off
Increase volume on source unit
Speaker connections not made
Make speaker connections
Gain control on amplifier off
Turn up gain
Signal processing units off
Apply power to signal processor
All speakers blown
Replace speakers
Output distorted
Head unit volume set too high
Lower head unit volume
Amplifier gain set too high
Lower amplifier gain
Balance reversed
Speakers wired L + R reversed
Wire speakers with correct orientation
RCA inputs reversed
Reverse RCA input
Bass is weak
Speakers wired out of phase
Wire speakers with correct phase
Not using MTX woofers
Buy MTX woofers
Blowing fuses
Excessive output levels
Lower the volume
Amplifier defective
Return for service
