I have been using mine for almost a week now, sounded average at first(my HD515's sounded more detailed) but have really come into their own over the last couple of days.
The was very suprised by them when watching the The Chronicles of Riddick last night, I have never heard a soundtrack bocome to alive on headphones. Very impressive.
I will mod them in a soon, I might wait for my O2 boards to arrive as to have a few amps to choose from when testing. :)
My only complaint so far is the 3.5mm plug/socket is a bit temperamental about the angle it is connected on, the right channel keeps dropping out.
Edited by jacobthellamer - 12/5/11 at 4:17pm