If you look at the V3 M80 graph it would not imply harshness. The treble is actually very linear. Note that the treble is not rolled off like a lot of speakers. Harshness will depend on the source/recording you are using and not the speaker.

http://www.axiomaudio.com/gallery_disp.html?image=M80_freq.gif&title=M80

For receivers anything from Harman/Kardon, Outlaw, Nad, Denon, Onkyo will all work well.

I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne