PSW10-Crackling sounds when playing, hum when no source

Noticed sub humming the other day, when not in use ( I leave switch on Auto ).
Reset power, cured hum temporarily.

Playing source with LFE, hum starts, then crackling sound when playing LFEs, then hum resumes when source turned off.

Switch unit off then auto, quiet until source resumes, then same problems as above.

Removed rear panel/board - no visible burned out components or loose wires.

Replaced panel/board, no change.

PSW10 110V 2007 build.

Thoughts? Advice?




  • KennethSwaugerKennethSwauger Moderator Posts: 6,776
    The bass amplifier needs to be either repaired or replaced. The first place to begin is with Polk's customer service department on Monday. Telephone them at: 1-800-377-7655 select option 1 and mention you have joined Club Polk.
    "And the house you live in will never fall down
    If you pity the stranger who stands at your gate" G.Lightfoot
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