FYI if anyone is curious, for me it's:
Modded Q701 > HD-650 > Annie
If you like the HD-650 you'll probably love the modded Q701. Or maybe not.
Still don't have a clue why I like the HD-650 but not the Annie.
The Annie I heard had all the air sucked out of it. Sounded way too dark and congested. Guess I have bad luck.
My modded Q701 is now about as full sounding as my HD-650. Low bass presence is about the same. Maybe a tiny bit better. Neither have any large mid-bass hump or low mids that are too forward.
People say the Annie is a mix of the HD-650 and the Q701, but for me it's actually the modded Q701.
Modded Q701 is so much better than the Annie IMO.
BTW when I switch between tracks on the HD-650 and modded Q701 there isn't a dramatic difference. Obviously Q701 has a little more treble and is more airy sounding.
HD-650 isn't going anywhere though!
Don't forget that you can put Annie pads on the Q701 and switch between two different sounding headphones.
Edited by tdockweiler - 10/16/13 at 6:50pm