Got 'm! Well, they sound very nice at least. Not as muffled as the CX300 Ive had. You find quickly though why they're so cheap, they have to fit exactly 100% correctly in your ears, otherwise, the sound's terrible (a 30-60-90 triangle, starting at the low end not existing and only having few mids and lots od top ends). Also the cable is next to trash, very badly made (pity for such a quality sound!).
Burning them in now, and they already sound even better after 2 hours of medium volume.
Pity too is, that I bought these after the CX55 were out of stock at a site. Theyre in stock now. http://dx.com/p/genuine-sennheiser-cx55-in-ear-stereo-earphone-with-carrying-bag-3-5mm-jack-120cm-cable-844034760?item=1
As they're totally refreshed on the site, all hundreds of reviews are gone, they were very very good though. And I believe they are real real, so anyone to give these a try?