How is the sound of the 250ohm DT880? Kinda tempted by the FS post in the other forums heh heh.
these sounded bright to me at first listen and i was coming off the senn ie8 and the grado sr60 at that time. the soundstage is wide, much more than a grado sr60 although the dt770 might have better soundstage than this. very clean sounding, the mids are less compared to a grado sr60, but on long term listening, i found them with just enough mids and highs. bass is kinda on the shy side but its very accurate, and bass heavy tracks will have a good amount of these surprisingly... these are very revealing cans, and i loved them for that

the 600 ohm beyer improves on the mids presentation. i feel the treble and bass is improved too, but it might be the psychological effect of the mids...
hope this helps. you might wanna audition them first. but i brought a sansa clip to the meetup and that was a big fail...

Neil (Thesharkbite) has these now, you might want to pm him for more impressions. bro Don has an armamentarium of headphones sold or within his possession. he could give you the best description of these

how much are they?