Do you guys really enjoy listening to the esw9 with an amp? I'm asking because I like them without an amp, for some reason I think they sound more resolved and cleaner without an amp. Then again, maybe it's my laptop that is doing a good enough job? I feel the same way with my M50 back then when I still listen to them. That's one aspect I do appreciate about them, I just wish they had velour pad though as I'm started to really considering moving away from all leather and pleather. With some of my other headphone, I find it necessary to amp them like the D2000 and the A900X, you can listen to them without but better with.
Maxx134,
I do understand your comment that you can check the esw9 driver color, but I'm sure there are a lot of people who just doesn't open up there headphone or remove anything to check.