I just got the DT 880 Pro (250 Ohm, slightly more linearly voicing than the 250 Ohm non-Pro). I've only listened to them on the crappy, in-built soundcard on my work PC. But wow, I didn't know there was so many little details in Skrillex's new single "First Of The Year (Equinox)", and I've listened to it more than a dozen times on my Koss clip-ons.

Sure, there's no ear-flapping bass, but the bass information is there, and that's all I really need for accurate monitoring. On the same note, the bass does not distort the highs like it does with the Koss.

So freaking clear.
_________________________
Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris