I believe Emotiva has resolved some of the earlier problems like I had my MPS-1 shutting down years ago, of course your Onkyo has anough power to drive the speakers without an extra amp.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85