What is the difference between the M60's and the M80's? Is the quality different or just the loudness. and I'm planing on getting one of those and the qs8 and vp150. I was planing on either the Onkyo 797 or the Denon 3802 but I read that the 3802 should not be used with 4ohm speakers. Would this matter if I get the above setup? I might try and hold out for the Onkyo 898 but thats about 1,000 and I don't have that considerning I'm getting the speakers as well. Which one of the receivers would best go with this setup
