Interesting.... Off topic: I have modded 5000s, HD650s and SA5000s and to be honest the 5000s are my favorite by a large margin. I really can not understand anyone saying they prefer the 650s, they have no where near the detail or impact of the 5000s (after mod, before that they had way to much bass and it washed out everything else). I've also done a lot of frequency sweeps with all my pairs of phones and too my ears the d5000 is noticeably flatter than the 650s. On the other hand if you have crappily recorded music you're screwed with the 5000s while with the 650s you can still have a good time. To each their own I guess.