I immediately noticed the nice, full, rich low end. I sat and listened for a while and found myself wanting to EQ in an upper mid and treble boost. Was this the "veil" I keep hearing about? The bass started to seem a little too full. The soundstage is nice, but no comparison to the wide-open airiness of the 880, which is really the 880s biggest strength. In comparison, the 650 seems closed in, pinched and a little muffled. That said, still wonderful sounding. Listening in iTunes, if I EQ in some upper mids and highs, they get right about where I want them, SS-wise. I have a lot of different sources though, so I don't want to have to rely on EQ'ing them.
I've been busy reading the break-in threads and apparently what I'm experiencing is completely normal... and that after 100, 200, or 300 hours they'll be like a different set of phones; the bass will tighten and un-bloat, the treble will present itself and the phones will just open up. I'm willing to find out, so I guess I'm going to leave iTunes on in shuffle mode for a few more days.
You guys think I'm in for a nice surprise or a disappointment?
100-200-300 hours for break in? I've been away from my head-fi rig for a while, but just got my HD 650 today - used from a seller on eBay that claimed very little use (they do appear unused). I am coming from Grado RS2i and the change in sound is really dramatic; lush is one way to put it, but I see what folks mean by the veil.
Looking forward to experiencing the "break in".