Fwiw, the one I have now was purchased brand new less than 4 months ago. This is my second. The first one I owned (which is now my cousin's) was not an older black screened HD650. Other than having better gear now and the HD650 sounding a tad more refined as a result, it sounds identical to that other one. Any variance would have been accounted for by the age of the pads on his headphone and less than perfect volume matching when we compared the two.
Edited by olor1n - 3/24/13 at 6:57am