The Classic Pro features distortion effects that are re-creations of popular pedal and amplifier based distortions. We have chosen names for the
distortions that will be suggestive of the sounds you will get with all of
the controls in the central part of their range. We are not trying to imply
exact simulations of the various analog effects. Rather, this is a different
take on classic sounds based more upon evaluating the sounds by ear
and overall circuit function instead of attempting to do a mathematical
model or emulation (which, incidentally, we think is really not possible
for distortions).