I currently have a pair of DT235's and love the sound of them, but 1) They're not very comfortable for long periods of time, and 2) I'm wondering how good something in a higher price range will sound.
Basically, I'm looking for a similar sound, just better. I looked around a bit on the site, but it seems like there are mostly intra-class comparisons, rather than inter-class.
I'd like to spend $100-400 (including a DAC and/or amp, if needed). Sources will be a MacBook Pro and occasionally a Mac Mini (with Audyssey speakers). I'd prefer a closed (or mostly-closed) headphone, since I'll be listening at work a lot.
In terms of music, I listen to a lot of folk/country and indie, but also some rap and electronic.