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Troubleshooting
Symptoms
Bass sounds distorted
Distortion with volume control
near minimum
Distortion on music peaks or
sound effects
Buzz, hum, or crackle when
connecting wires
Buzz or hum when system is on
No sound after listening
at high-levels
Causes
Amplifier is at maximum output
Receiver tone controls are set too
high
Defective receiver or preamplifier,
or shorted speaker wires
Dynamic soundtrack (e.g.,
explosions)
Connecting wires with power on
causes transient signal spikes
Grounding problem or
ground loop
Amplifier's thermal protection
has been temporarily activated
11
Solutions
Lower volume or receiver level
control
Set bass flat; use tone controls
sparingly
Repair defective receiver,
preamplifier or replace speaker
wires
Turn down volume control to
lower overall range
Connect wires only when system
power is Off
Check receiver or preamplifier
manual for help in eliminating a
ground loop
Lower subwoofer volume and
allow amplifier to cool down;
sound should resume
automatically
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