It has been an interesting journey for me to get to the Beyerdynamic DT 880 premiums. I've been trying to update my headphone/portables setups. On the move, I've been using the Etymotics HF3s. They sound great. I've ruined them a few times with sweat, so I picked up a pair of sennheiser in-ears designed for sports to solve that problem. That worked out well. I then contemplated additional quality in-ears for office and non-arduous activity. I thought I might replace the etys instead of sending them back in for warranty repair/replacement. I picked up the Martin Logan Mikros, but they were muddy in the mids to bass (a bit one note) and had very rolled off treble. So, I thought perhaps for home use I might go back to full-size cans. I haven't had to use headphones at home except in a studio types setting in which I use Sennheiser HD280 pros or a very old pair of Sony V6s. For music listening I use my Bowers and Wilkins 603/SVS-sub setup (home theater includes the larger 600 center and 685 surrounds). But, alas, a young child has pushed me to contemplate a nice set of headphones once more. I tried Bowers and Wilkins P5 and I like those, might even buy them for office use. But, they didn't quite do it for me as a replacement for my regular speaker music listening experience. After reading through countless threads here and without access to a high end hometheater/audio store to try things out, I ordered the DT880 Premiums (250 Ohm) along with an E7 amp. . In a word, beautiful. I think the headphones are great. The amp is weak. And, I'm not sure why I bought it in retrospect. Since I have the studio equipment, I have a presonus firepod and the headphones sound excellent through that as they do through my Denon receiver. I do like that with the Etymotics that the E7 can amp the bass a little (the Etys sound much better to me with the E7 bass 1 setting). In any case, I very much appreciate the sound signature of the 880s. The treble is excellent with lots of clarity and spaciousness through a surprisingly wide range of genres. So, thanks head-fi, I am glad I found this website.