Update to my list:
The only thing I listen to anymore, very smooth and natural sounding. The only complaint I could level with it is one I'm sure a lot of people would be surprised by; I don't think its quite "thick" enough. It needs a hair less upper mids and a bit more lower mids, and then its tonal balance sounds perfect to me. It can sound thin on some material, but never sounds overtly thick on anything, and I like a thickness to the sound where it's called for in the source material. The EQing I tried mostly solved this, but I'll be getting a Rolls Bellari HA540 and rolling a few NOS tubes in it soon enough; a tube amp with the right tubes should provide what I'm looking for. I'm not concerned with audiophile reproduction anymore, all I care about is how enjoyable the headphone is, and to me that means natural and completely transparent, with insane levels of clarity, and something I have absolutely no complaints about, but still has sublime detail, a proper stage, and precise imaging, mostly. Looking to the Koss ESP-950 as my TOTL headphone after this one.
Meh, they all have distracting problems that don't let me listen to the music, and instead force me to listen to the flaws because they're so front-and-center. Mostly bad tonal balances. DT1350 in particular has a few layers of haze over it that I can tolerate if need be, caused by a forward upper midrange and some other things, but I'd prefer to be using the HD600.
Edited by IzzyAxel - 3/6/13 at 11:11pm