hey thanx 4 replyin...actually its for a frnd of mine and he iz a hrd cre gamer...playz CS all the tym and also has a clan....hs main purpse iz gaming bt will also b using em 4 listnin 2 muzik.....he had selectd the HD 515 bt wants 2 kno wdr he cn gt nything better for 6k....btw wts the price of PC-150 and HD 515(INR wud b preferd) and are thr ny Sennheiser showrooms or authorized distributors @ NP????