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NILES AUDIO CORPORATION
– 1-800-BUY-HIFI – 1-760-710-0992
2 ChAnnEL, BRIdgABLE PowER AMPLIFIERS
TROUBLEShOOTING GUIdE
Symptom
Possible Causes and Test Procedure
Hum from the speakers
Check for faulty cables, faulty source material, an
ungrounded phono system or a defective component.
Amp will not turn on
AC power cord must be plugged into a working outlet.
Master power switch must be on.
Bass sound is weak
and the stereo image
is “phasey” or “blurry”
sounding in one room
The loudspeakers are wired out of phase. Reverse the
connections at the back of one speaker.
9901253-Rev-A-SI-2150Manual.indd 19
6/8/12 9:43 AM
