I Just received the cable 30 minutes ago. Pretty fast from Hong Kong to Europe actually...in a few days
Well, the cable is SO much better than the stock cable. No more distortion due to built-in volume control. The 2.5mm end on the headphone fits perfectly! Finally the CAL2 feels solid. Ive always hated the stock cable.
I don't believe in "cable magic", and also don't think they make a HUGE difference in sound quality, but this cable actually DOES deliver better sound, because it's a "clean" cable without volume control.
I would recommend everyone to try the HD598 cable or maybe the Momentum cable.