Polk audio PSW111 subwoofer has heartbeat sound issue

Hi all,

My Polk audio PSW111 subwoofer has weird heartbeat sound even when it only pluggin power AC. How to fix this issue? Please help


  • KennethSwaugerKennethSwauger Moderator Posts: 6,846
    In all likelihood the bass amplifier will have to be repaired or replaced. Do you live in the U.S.?
    Regards, Ken
    "They thought we were too loud, but shoot, I had four army blankets folded over my amp, and the volume level was on 2. I'm used to playin' on 10!" S.R.V.
  • kharp1kharp1 Posts: 2,877
    Wow, wish I would have looked here before I purchased a PSW111 from the flea market here. Seems to be a recurring problem with the amps on these subs.
    Main System:
    Joule-Electra LA 100 MKIII
    Pass Labs Aleph 30, McCormack DNA-125, Parasound A21
    Marantz SA-14S1
    Usher CP-6311/Tyler Acoustics Taylo Reference Monitor, LSA-1
    Dual SVS SB2000
    Wireworld Equinox 7 bi-wire, Wireworld Silver Eclipse 7 IC

    Secondary Rig:
    Parasound P5, Audio Electronics by Cary Constellation
    Marsh a200s, Audio Elecrtonics by Cary Hercules
    Pioneer Elite DV-45a, Denon DVD-2910
    Klipsch Epic CF-1, Vandersteen 3CE sig
    Analysus Plus Oval

  • gkmackeygkmackey Posts: 1
    There is a video on YT by a Russian tech. It is not narrated due to language barriers but it is the same heartbeat problem. It is a capacitor issue.
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