Buzzing or Humming Speakers Help!

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lschweigman
lschweigman Posts: 1
edited May 2007 in Troubleshooting
We have just spent a few thousand dollars on a new TV and audio system. We have a Denon receiver, Polk in wall/ceiling speakers and used monster cable for all of our cables. We ran the speaker wire when we were re-doing the drywall in our house a few months ago and was sure that the electrical wires and speaker wire didn't touch.
Problem. We have just hooked everything up and when the lights are on there is a loud buzzing/humming sound coming out of the speakers. When the lights are off it sounds great. What can we do to fix this problem?

The lights are on a different circuit than the tv/audio setup and the speakers are about 2-3 feet from the lights.

Thanks!:confused: :mad: :confused:
Post edited by lschweigman on
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  • F1nut
    F1nut Posts: 52,234
    edited April 2007
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    Is the speaker cable shielded?
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  • Neskahi
    Neskahi Posts: 297
    edited April 2007
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    For the record, what type of lights are they?
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  • adam2434
    adam2434 Posts: 995
    edited April 2007
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    Are the lights on a dimmer?
    5.1 and 2.0 ch Basement Media Room: Outlaw 975/Emotiva DC-1/Rotel RB-1582 MKII/Rotel RB-1552/Audiosource Amp 3/Polk LS90, CS400i, FX500i/Outlaw X-12, LFM-1/JVD DLA-HD250/Da-Lite 100" HCCV/Sony ES BDP/Sonos Connect. DC-1/RB-1582 MKII/Sonos Connect also feed Polk 7C in garage or Dayton IO655 on patio.
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  • disneyjoe7
    disneyjoe7 Posts: 11,435
    edited April 2007
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    Did you install the in-wall speaker wire next to any AC power cables?

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  • danger boy
    danger boy Posts: 15,722
    edited April 2007
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    dimmer would be my first guess also..

    any florescent (sp) lights in the room?

    and like F1Nut said.. is the speaker wire sheilded?

    is the buzz/hum on all speakers or just some of them?
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  • treitz3
    treitz3 Posts: 20,236
    edited April 2007
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    Are the electrical wires running parallel to the speaker wires? Within say, 6 inches [or closer] or so over a long run?

    Could you clarify as to whether it is a buzz [high frequency] or a hum [low frequency]? Or both?
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  • Serendipity
    Serendipity Posts: 6,975
    edited April 2007
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    I use an APC power conditioner and this has eliminated all of my humming problems.
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  • scottdwagner
    scottdwagner Posts: 106
    edited May 2007
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    Also check for ground loops. Unplug each piece of equipment and see if it goes away. I agree that this is probably the dimmer.
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