You know it's funny buut I don't know anyone who has actively investigated
even
this situation. What I mean it seem to me that the most common "sound" of
amplifiers driven into overload may not be the "clipping" but the action
of
overload protection circuitry or the behavior of loudspeakers driven into
excess distortion.

Just fishing here and I wonder what others may have discovered in this
regard.

Shouldn't be much different from clipping your preamp signal.