Question about Altec Lansing 621 Computer Speakers

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My subwoofer (Altec Lansing[AVS500]) is always makeing a thumping

Every time I use my computer my subwoofer makes a thumping sound. I dont think I have blasted them because I never turn them up pass a quarter of the way on the volume, sometimes its doing the thumping sound sometimes at night and it gets irritating. If my speakers are blasted I would like to know where to get them fix because I like these speakers with the suround sound.

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  • Altec Lansing Master
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You could only verify this by gaining access to the rear of the speaker but I suspect that the 'spider' has come unglued. This is a device that surrounds the lower (inner) end of the cone to provide a second point of suspension; without this, the voice coil can slap against the side or bottom of the magnet structure.
I don't think a repair is an economical choice for these; repairs only make sense for 'professional' speakers that cost several hundred dollars to replace.  

Posted on Apr 13, 2009

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Posted on Jan 02, 2017

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