I've used two receivers to drive my M80s as a test; the crappy RCA (rated 8 ohm) one "died" in 10 minutes while the Yamaha (rated 6 ohm) "passed out" after 30 minutes or so. This was done at very loud levels with party music.
I had the M80's running at the same levels for a few hours on my 4 ohm rated Emotiva monoblocks without any issues whatsoever.
I guess it all depends what are looking for; for every day use most receivers should work.
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M80 v3, 2 x Emotiva UPA-1 Monoblocks, XPA-5, UMC-1 PrePro
Pro-Ject RPM Genie, Carver C2 Phono Preamp