I don't find my M22 to be bright with my Elite receiver, they were a bit on the harsh side with my Denon but only at high volume.
I listened to some B&W 603's with the matching center yesterday (Jurassic Park) at the father inlaw's and found them to be almost headache givingly bright.
Yeah, I don't like those headache/earache inducing highs. Luckily I get to go to two auditions for the M80s in February. I'm looking forward to hearing them.
And I like to listen to music at high levels, so I don't want it sounding "harsh" as you put it