I am currently using a pair of Senn HD439s as my office cans - I'm looking to step up, but everything I know in terms of better headphones is open-back stuff. I work in a cubicle style office, so open-backs are completely out.
Velour around-the-ear cup format is essential for me, as in-ear monitors cause me all sorts of problems, rubber cups make my head sweat, and on-ear aren't comfortable enough for all day use.
The HD439s are pretty close to perfect in that they're of very respectable fidelity and have around the ear velour cups - I have no issues with sound leakage, and no issues with comfort. Thing is, I'm used to listening to my HD580s and the like, so as nice as the 439s are, I want to step up. I'm running an M+M stack, so driving is no issue.
I'm looking to spend at least $200, and preferably below $300 - I want to be stepping up a tier here, but I don't want to be spending HD650s money on this. As far as I can tell, Sennheiser has nothing to offer me here, and since I'm a long time Sennheiser brand loyalist, I don't exactly know where to look.
For the sound profile, I want pleasureable listening, not an ultra flat output - subtle enjoyable coloration is fine. I want detail, to hear the performers breathe as I do with my HD580s, and a good soundstage much as is possible with closed cans - I'm far more concerned with the soundstage and the detail than the coloration.
Mandatory: Around-the-ear, breathable/velour cups
Suggestions would be greatly appreciated.