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Buzzing Cerwin Vega LS-12 Subwoofer

There is a constant loud buzzing when I turn my subwoofer on (regardless of whether there is anything playing). Any thoughts on how to fix it?

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  • Vince3962 Nov 28, 2007

    Great

  • Vince3962 Nov 28, 2007

    Great thoughts. I did as you instructed. Unfortunately, the loud buzzing sound remains. The buzzing occurs anytime the speaker is "on," regardless of whether it is even plugged into my receiver.

  • Vince3962 Nov 28, 2007

    Any other suggestions?

  • lbstarfish Jan 06, 2008

    Loud buzzing noise coming from the subwoofer even when the television is off. I must turn off the speakers to stop the noise.

  • DViper2399 Feb 03, 2008

    Same exact problem!

  • Anonymous Feb 06, 2008

    Hi.

    I had the same problem. It is most likely a bad ground in the home wireing. A temp solution is to stop the ground connection in the 120 input to the sub. you can do this by putting a non conductive like clear plastic over the ground prong and slide the plug part into place. I did this and it works well. Just need to get the master electrician over to fix the bad ground in my breaker box now.

  • Anonymous Jun 01, 2008

    NONE

  • Anonymous Aug 20, 2008

    I'm having the same problem!

  • aero2 Nov 26, 2008

    I have the same problem. I will try and disconnect the earth and let you know how I get on. I have tried to plug it into other mains circuits in the house.

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If it's not interference or a ground problem it might be a bad amp. I have the same sub and not only did I have the buzzing, but also a noticable "whacking" sound instead of smooth bass. I found an online seller who at the time just happened to have obtained some surplus Cerwin Vega amps that fit perfectly. Paid $60 shipped. Problem solved.

Posted on Feb 23, 2008

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Generally, a buzz from your sound equipment indicates some sort of nearby EMI. The normal culprits and.or possible fixes that I've found are:

- Remove any other electronic devices plugged into the same outlet as your subwoofer

- If the woofer is on a power strip/surge protector, remove it and plug directly into the wall

- If there are any nearby wireless devices (cordless phiones, WiFi eqiupment), disconnect/power down them

- Try connecting different speaker wire between the woofer & the receiver

- Try turning off all other eletronic equipment with the exception of your receiver


Let me know if any of these help and good luck!

Posted on Nov 27, 2007

  • Benjamin Petrofsky
    Benjamin Petrofsky Nov 30, 2007

    Maybe this might help? It's a quick story of a similar problem I had with my amplifier speakers:



    Back in high school, I used to play electric guitar. One day, I noticed a low humming that seemed to become more & more apparent as the days went on.



    It eventually got bad enough that I took apart the amplifier. After some visual examination, I noticed a wire whose insulation had melted away from resting against one of the vacuum tubes during operation.



    Upon wrapping the faulty sectionin electrical tape and powering the unit back on, I noticed (to my delight) that the humming was finally gone.



    Good luck!

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I also had a problem with buzzing on my eltax atomic a8 weather the amp was switched on or off.

i followed many solutions and the one that worked was isolating the earth pin on the plug.

now not even a hum

Posted on Mar 06, 2008

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There is too much electrical feed back coming from your earth, you can install a line level filter, or get an electrician to do it. Or you can remove the earth pin on your subwoffer.
I have done this to many subwoffers and it worked every single time.

Posted on Dec 13, 2007

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Posted on Jan 02, 2017

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