Subwoofer huming...

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  • 11-02-2004, 05:29 PM
    Z3r0
    Subwoofer huming...
    Hey i have powered sufwoofer and it makes this buzing sound, so i figured "meh" ill return it for a new one. The new one makes the same sound (a little bit louder), so i figured must be interfearence causing it to hum i tried it in 3 different sockets in 3 different rooms still hums like a bizatch. Any suggestions? This humming sounds eating through my head!
  • 11-02-2004, 06:03 PM
    markw
    Does it do it with nothing plugged into it? ..or does it only do it when it's connected to the receiver? It it's the formar, it's a subwoofer issue only. If it's the latter, I'd suspect a ground loop.
  • 11-05-2004, 04:16 PM
    joel2762
    Would you mind telling what brand/model the sub is?
  • 11-05-2004, 07:05 PM
    Dusty Chalk
    Actually, the last time this happened to me, it ended up being fixed by replacing the subwoofer cable with shielded one.

    Yes, it surprised me, too.
  • 11-05-2004, 10:18 PM
    yogo
    This link might be the info you're looking for
    http://www.partsexpress.com/pdf/300-806.pdf

    Subwoofer hum elimination info at the bottom of the page.
  • 11-18-2004, 02:12 PM
    bignerd100
    Unhook the CATV from the system (wheather it is plugeg into the VCR or the TV).

    90% of the time this is the culprit. If it is you will need a Magic by Mondial. This fixes the cable grounding problem without degrading the signal strength of the CATV.

    Otherwise it is a bad interconnect, uncommonground (sub on different circuit than stereo), or Gremlins.
  • 11-19-2004, 06:39 AM
    Ryanm
    The hum with my subwoofer was the same as dusty chalk's. I was using a very crappy rca cable to connect the sub to the reciever. After I replaced the sub cable, the humming went away.