After a long search and compare finally found the right one. Granted, this part is not exactly cheap, but you will be compensated with an incredibly great sound. From the deepest bass to treble, perfect. However, the 600-ohm version should only set which operates the headphones to a stereo system. At the sound card or the MP3 player you should use the 32 ohm version would you prefer, otherwise you will be disappointed certainly. And who wants to operate it both stereo and the MP3 player, is certainly well served by the 250 ohm version. Then I hear only at home on the system, I decided for the 600-ohm version. So I would highly recommend this headset.
