I can’t comment on the AVR vs AMP debate but can say that my Onkyo plays either my M80s or my whole system so loud w/o distortion that getting amps for my M80s dropped way down on my bucket list.

3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1