Since I've been using essentially the same setup for several years (Harmon Kardon AVR635, M22's, QS8's, VP150), I'll chime in. John is right in that the 635 does not have the THX Re-EQ option.

I don't know how long your night mode has been at 'mid', but that should definitely be off, unless you truly are using it with the intention that it was designed for. Turning night mode off seriously might rectify your problem.

I use the H/K auto-EQ on more than off, and do find it useful. As discussed, perhaps try using that again.

Maybe try some resistors in the VP150 and see if that tames the harshness of the tweeters you are hearing.

Bottom line, with my system, I've never noticed a pattern of the problem you're describing. Sure, a particular DVD or CD might have a little harshness, but that is more the source. So something sounds a little strange in your case. Hope you can figure it out.

Last edited by gem41573; 10/02/07 05:58 PM.