If it helps Dave, I had my old Denon 1804(90W/ch) running the M80s upto ~100db in my room, the 3808 now can hit about 103 and still sound clean depending on the source material of course.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70