Question about Acoustic Research S112PS Subwoofer

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Ive got an acoustic research sub and i was listening to a concert dvd not to long ago and the sub just quit working. i checked the fuse and it didnt seem to be blown but the on light still comes on and id like to know what i can do to fix this problem

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  • chunley454 Feb 08, 2010

    how do i replace the speaker without tearing up the enclosure?

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The most likely cause of this problem is that the voice coil of the sub woofer is shorted, replace the speaker.

Posted on Feb 08, 2010

  • yadayada
    yadayada Feb 08, 2010

    I have never had one of these apart, but there is a way if u just take your time, you might try taking the speaker to radio shack and asking them for a hands on solution, they can also supply a new speaker from there huge catalog inventory

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Are you sure it is receiving an audio signal to make it wake up? You don't mention what's upstream in the audio chain.

To eliminate mis-settings or lack of sub-related signal upstream, plug an RCA cable from a CD player directly into it and start a CD that fades in slowly because you won't have any way to lower the volume except to pause the CD. If the sub works you'll hear a muffled version of the program.

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If you feel compelled to monkey with it, I'd start with the state of the Auto switch. It might be asserting "ON" instead of "Auto"

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I have the same problem with mine and since Acoustic Research went out of business, I too have been looking for a solution. I may have found an alternative to throwing away this really nice speaker. I found a company on the web that appears to sell an amp that may fit nicely into this speaker enclosure for $99.00. Check it out...http://www.partsexpress.com/pe/showdetl.cfm?DID=7&PartNumber=300-805

UPDATE Feb-16-2016: This Amp is still going strong since 2012 when I replaced it. The price has gone up to 139.00, but may still be worth it to replace a bad one given the cost of Sub's today.

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