Since I ordered my M80's I've been doing some reading on receivers and am a little concerned my Yamaha 6080B may not be enough for the M80's and VP150. How do I know? It's definitely not rated to 4ohms. The manual only refers to 6 or 8ohms.

Just curious as to what receiver is recommended that won't break the bank? I could get an amp I guess but not sure what plus there's the room issue for an amp.