Hello,
I bought this headphone a year ago (Christmas 2007) to replace a Sennheiser PX100. At first I was disappointed, but then I realized it was an excellent headset:
Highlights: Headphone very dynamic and powerful (péterons your eardrums before he exploded), who's powerful in the bass going down very low. Acute very correct, although this medium. What fascinated me most is the level of detail, with sounds that I had not noticed on my PX100. This headset offers a sophisticated music with a clear ... superb. and more practical level, there is the isolation level is really good, erasing a portion of the bandwidth and especially the treble sounds.
Weaknesses: the bass, which on some tracks will be a little too far. comfort: he shakes, does not have foam on the headband. it took me over a month to get used to.
Finally, it is the strength of the jack, which was two times of bad contacts and the second was one week ago and this time it the shop gave me a voucher and I'll blow buy a new one, which will certainly be the Sennheiser HD600. In any case, I will have kept a year, and I am very happy