audiofan,
I heard NO distinguishing sound character whatsoever when doing an actual a/b blind test at home with a Denon 3802, an Onkyo 797, a H/K (slightly older) 380i or 2 other amps.
Don't kid yourself.
When these are all volume equalized, set on the same speakers and heard in the same room blind, you would never tell the difference.

"Those who preach the myths of audio are ignorant of truth."