Question about Speakers & Subwoofers

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Increasing buzzing i have a 150W 5.1 channel home theater system, and i turn it on, and after about 30-40 minutes it will start with a low buzz, and then it will get louder until you cant hear the music anymore, and i can turn it off, and turn it on again, and it will do the same thing

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It looks like a dry or leaky capacitors in the power supply circuitry. Do a visual inspection on those big capacitors and pay attention for some bulging on top.
You should replace them to eliminate that buzzing noise.
Let me know if you need further assistance.

Posted on Apr 16, 2008

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It is power amplifier problem

Posted on Apr 16, 2008

  • Kleanthis Mavropoulos
    Kleanthis Mavropoulos Apr 16, 2008

    If 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, and see resullt.

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Hello,

Please verify all the wiring may some of these are grounded to each other,

else, examine the cuircuit of your home theater system.

best regards, melnavz

Posted on Apr 16, 2008

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