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I have a Fisher ST-845 speaker that I just replaced the foam around the subwoofer. Now I have a bass rattle in just one speaker when I turn up the volumef. Any suggestions?

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5 Suggested Answers

jerryg50
  • 1667 Answers

SOURCE: Rattle Problem w/ subwoofer

When you put the new foam, maybe the cone went off center. Get a new kit, and re-do the job with more care. Check to make sure that the spider is okay, and that the speaker coil is not warped or anything like that.

There are speaker companies the professionaly rebuild speakers. They are better equiped and have the jiggs and facilities to properly rebuild the speaker from the coil up.

If you really want your speakers, you should consider giving the complete set out for rebuilding and testing.

Jerry G.

Posted on Apr 28, 2008

  • 15 Answers

SOURCE: Low treble

I suspect that the speaker levels need to be set. You connected everything right - many people would not have connected the sats via the bass section (which has their high pass crossover and overload protection). But I am betting the HSU is turned up a bit on the high side.

Try this. Set all speakers to small, set all levels to 0. Play the receiver in stereo all mode. If the bass is strong, you need to turn the HSU down closer to a natural sound. Then use the speaker setup tone and adjust as needed.

Posted on May 15, 2008

  • 6 Answers

SOURCE: Subwoofer preout and bass

did you tell the receiver that you have a subwoofer connected (thru the quick setup)?

Posted on Aug 05, 2008

  • 119 Answers

SOURCE: What is the significance of

Yes, buy a speaker system with smaller speakers and a sub woofer. Bose, Boston, JVC or the likes

Posted on Feb 25, 2009

  • 336 Answers

SOURCE: The foam edge support for

Check out this site: http://www.mcmelectronics.com/search.aspx?C=&K=speaker%20repair
or google search "speaker refoaming" to find a local or somewhere to ship them to be repaired.

Posted on Mar 08, 2009

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Without the foam they will definitely rattle as you mentioned.Probably 3/8" - 1/2" thick should do it as it should compress when you reattach the speaker.It really doesn't need to be specifically for speakers.At least I would just find something available cheap.Foam is foam really.If you have any questions or need more help,just comment here and I will get an autolink to your post and reply ASAP.Good luck,Greg

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When i play certain bass, like mainly highs, but not all highs, my speaker seems to rattle. no im not an idiot. i know subwoofers rattle stuff when you have them on. i know almost all there is to know...


It is possible to overdrive a speaker beyond what it can handle.

DO NOT BELIEVE the spec sheets regarding power and capabilty, especially those for automobile amps and speakers.

If the cone moves too far, the voice coil leaves the active area of the magnetic field and the speaker will "rattle".

The speaker AND its enclosure may be resonating at particular frequencies.

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1 Answer

Rattle Problem w/ subwoofer


When you put the new foam, maybe the cone went off center. Get a new kit, and re-do the job with more care. Check to make sure that the spider is okay, and that the speaker coil is not warped or anything like that.

There are speaker companies the professionaly rebuild speakers. They are better equiped and have the jiggs and facilities to properly rebuild the speaker from the coil up.

If you really want your speakers, you should consider giving the complete set out for rebuilding and testing.

Jerry G.

Apr 27, 2008 | Audio Players & Recorders

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