As WSHS31a stated, pros seem to have a wide range of experience in this equipment.
My brother is a long time Audio/Video engineer/producer with a lot of experience with home audio gear. I had not seen him in several years and he came for a visit last summer. He wanted to hear my M1's fed into my Bryston Signature Model T mains with three subs place around the room in a 270 degree layout. (subs are Axiom/Bryston). I have around 6000 watts in total here which includes the 4000 watts at 4 ohms (dedicated dual 240V/15 amp feeds) into the main speakers. My brother was blown away; he used to work with many national bands who would tour at his college and he said my living room which is around 10,000 cu. feet in size sounded better than the live venues he worked. He loved the Class D M1's.
I am going with his opinion and experience :)