Ah, ok. The article Zimm pointed out is a continuous output test and this was the only instance I was thinking about. It is in this instance that I thought that clipping becomes 'hard' so that you can't get clipping at .o16%THD. Is this correct?

I understand what happens with program material and that often you only get clipping of very small parts of the signal.

Fred

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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!