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View Full Version : One sub sound great



Rb0397
02-26-2014, 09:21 PM
When I plug in the rca from the cd player to the amp, when I plug in the red the right sub sounds good, but when I plug in both they both sound bad.

Side Show
02-26-2014, 09:40 PM
search for ground loop through rca's

Lowlacs
02-26-2014, 10:02 PM
Check polarity at the subs.