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Grinding noise in all speakers

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1 reply to this topic

#1 of 2 OFFLINE   Louisp


    Stunt Coordinator

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  • Join Date: Feb 23 2004

Posted December 04 2004 - 01:06 PM

This problem involves my Harman Kardon AVR 525. For some unknown reason when random bass notes occur within Dolby EX broadcasts the resulting sound is akin to grinding rocks. This terrible noise is heard in all speakers. The audio cable has been tested and eliminated.

Your comments and suggestions are eagerly awaited.


#2 of 2 OFFLINE   Marty Neudel

Marty Neudel

    Stunt Coordinator

  • 223 posts
  • Join Date: Mar 16 1999

Posted December 05 2004 - 07:37 PM


it sounds as if you might be experiencing clipping, which happens when an amplifier is overdriven. Clipping can destroy your speakers (esp. the tweeters).

Until you have remedied the problem (either by less demanding speakers or higher powered amps), DO NOT under any circumstances continue to play your system at the volume level you have been using.