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-   -   An unusual "feature" on a commercial amp... crosscoupling between channels at hf. (http://www.diyaudio.com/forums/solid-state/160401-unusual-feature-commercial-amp-crosscoupling-between-channels-hf.html)

Mooly 1st February 2010 07:34 AM

An unusual "feature" on a commercial amp... crosscoupling between channels at hf.
 
Would anyone care to comment on this circuit in post #1 here,
http://www.diyaudio.com/forums/solid...some-info.html

If you look at the outputs left and right, each is coupled into the other channel with an RC network...

godfrey 1st February 2010 09:13 AM

Strange!

It looks like it will introduce a small amount of cross-talk that rises with frequency. Still only about -40dB at 16kHz though.

I can't imagine that's a useful or even audible tweak sonically.

Maybe it's to cancel out unwanted crosstalk introduced elsewhere (e.g by stray capacitance)?


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