Question about Infinity TSS-750 System

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My subwoofer is making a regular thumping noise every 3 or 4 seconds. I had it unplugged for along time and just hooked it back up. It makes the sound regardless of where its plugged in and even if it's not connected to the receiver.

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If you can replace the subwoofer, do it! Unless, your whole sound system is based on it. problem inside of subwoofer's internal amp. It's an active subwoofer, must be replaced with same kind. otherwise, take unit to local repair shop for diagnostics and repair. it might be some capacitors gone bad, may be IC chip is at fault. anyway, not do it yourself, unless you're an electronics expert.
good luck,
Alex's Tv Service,

Posted on Feb 03, 2010

  • Michael Edwards
    Michael Edwards Oct 23, 2011

    The amp is bad - putting dc to the woofer - don't plug it in unless you want more damage - I have add here and also on ebay - which model amp you have ? (SUB AMP)



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