I see that headroom has the hi-780's but not the 580's; are these similar in sound characteristics? Thanks again for the advice.
Well, for one I'd put the Ultrasone HFI-580 above the ath-m50 on your list (overall better sound quality, present bass, better detail retrieval, and tonality). I've been looking in to the Q701 a bit myself. Many people say the HD598 have less bass than the q701 which is strange since the q701 have a bass-light balanced sound. I haven't heard the q701 for myself, but i've heard good things about them. I've heard even better things about the dt880, which costs about $100 more at this time. I actually stood at B&H listening to them for a good 20 minutes and all I can say is that they're great, and although more expensive probably worth it.
Edited by desmoface - 7/31/12 at 4:20am