Short update, after having listened to the SHE3580 for a few more hours today, there's one feature that stands out for me and it's transparency. These phones are very good at opening a window to the music and removing themselves from the equation. This is mainly due to their clarity, balance and timbre, but also because they're so tiny and light, you hardly feel them in your ears. Color me impressed.
Edited by james444 - 12/30/11 at 2:02pm