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RE: Thank you, exactly.

I found that amp review on Stereophile (see above). I don't take too much stock in what the reviewer liked and didn't like. You can always find someone to like your product. Having had amps early in my audiophile career that were both Class A SS and what I would call close to Class B (meaning later measurements revealed zero crossing distortion), I can tell you the one with zero crossing distortion sounded nasty and congested and was not very long in my system.

The Naim measurement I found also has zero crossing distortion and I don't know about you, but I find all Naim amps to sound dry (as in no harmonics and poor low level resolution needed for ambience retrieval) and flat. Horrible amps that traded on the selling point of having PRAT...because they had nothing else that sounded like music.

To the best of my understanding, you cannot remove distortion caused by zero crossing with negative feedback. I would need to read the reference I learned that from again to know the exact reasons why. Might have something to do with the fact that it is not an inherent transistor property but related to the stitching together two transistors to make a whole waveform and the glitch created by the imperfect handoff.


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