I recently purchased a pair of Sennheiser HD 497. Do they need some particular treatment at first? Something like a pink noise treatment for speakers? Ah..how do you live with 3 mt of cable if you want to use them on the go?
The HD497 are one of the best headphones I've tried! Much better than any "generic" headphones you may own, and even better sound than the Sony MDR-V700DJ.