Welcome sgtpepper,
It likely depends on how loud you listen and how large your room is. The ICE amps in the other Pio Elites seem to be ok with M80's, but correct me if I'm wrong, this amp is not the ICE design, right?

It will most likely be fine at 'regular' levels, but at loud levels if your room is large is where the question comes into play. Perhaps someone else that has this receiver will chime in?

Cheers,

Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1