Hi Guys, I am sort of new to the receivers available in the market and really confused what to get. I am looking for a receiver for around $600 to drive M80 from Axiom (4 ohm speakers). There are so many choices and features that I don't know what I need and what I won't. I mostly watch movies and listen to music (rock from 70s, 80s, pink floyd, beatles, doors etc). Any help will be most appreciated.