Horrible hum/buzz in subwoofer of surround system

chamm

Estimable
Dec 5, 2014
2
0
4,510
0
Was just given an Acoustic Pro Cinema surround sound system. Got everything connected, but now we have a buzz/hum coming from the subwoofer. It doesn't seem to be a ground issue (we've checked several different ways). Is there a way to check the soundboard inside the subwoofer, or should we try something else? Any help is appreciated.
 

Cristi72

Estimable
Jun 25, 2014
155
0
4,710
40
Hello,

If the noise coming from the subwoofer is always present (even when not connected with the audio source), the problem is either the subwoofer's power stage or the power supply (check for leaking/blown-up capacitors). If the buzz appears only with the signal presence, it can be either a bad audio cable or the same subwoofer power stage.
 

Similar threads


ASK THE COMMUNITY