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bkwa1959

Bass type thump during some playback

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On my Klipschorns with ALK es400/es5800 crossovers I am getting a slight bass thump on certain music, I have changed amps and preamp and I still get the occasional thump. I get this with vinyl and digital.Any idea of why this is happening.

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Is it random or certain track related ?

 

 

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Certain tracks,l need to listen more tonight to make sure.

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Likely the recording if that's the case. If not post back.

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Speakers are passive elements - they don't "thump" except if asked to do so. so I would think either the recording or something in the chain - may even be something in the electricity network.

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I changed from the 8 Ohm tap to the 4 ohm tap and that took care of the issue.

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Hmmmm.  Mild clipping?

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I doubt it I used 2 different amps, Bob Carver VTA-20 and Primaluna EVO-300 and with both amps, I had the same issues.I changed the taps on both amps and that took care of the issue.I also swapped out crossovers I have ALK ES-400/ES-5800 and ALK Cornscala universals and both crossovers did the same thing.

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I'm curious what a "bass type thump" is.  Perhaps you'd be so kind as to describe it a little more particularly.

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