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RE: I would say nearly all amplifier designs are conceptually WRONG!

It isn't nearly as simple as you put it.

Did you know that a single ended amp can't even do a decent job of reproducing a simple sine wave? And this problem is inherent to a single ended circuit. It can't be fixed. When a sine wave is reproduced by a single ended amplifier the distance from the 0 voltage point to the top of the positive wave is greater than the distance to the bottom of the sine wave. The negative half of the wave essentially is cropped relative to the positive half. It's a significant factor in the large amounts of 'pretty' second harmonic distortion in all single ended amps.

There is no perfect format. All amps are compromised in different ways. But at this point we know that while 'nice' a single ended design will never be a final solution.


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