just bought new headphones today
looked at the corsair 2000 as well as loads of others
decided i could live with a wire and got corsair 1500 as the 2000 were £40 dearer and was worried about interference
from all my other wireless stuff
if the 2000 sounds as good as the 1500 then you wont be disappointed
though i bought these mainly for gaming with some music and video
if buying for mainly music i would go wired and would go for Grado Prestige SR60i--pretty cheap but fantastic sound