Marantz is made by the same company as Denon and I suspect you would find some similar components inside. I would be surprised if a Marantz couldn't handle M80s just as well as a Dneon.

I have always thought of Marantz as an upscale Denon, kind of like what Acura is to Honda.

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