I seem to be getting this a lot, but no... I just prefer to err on the side of too-much bass rather than too-little, because it makes judging bass levels easier when mixing. Sure, my current setup probably doesn't drive them to their 'full-potential' (even though I am powering the O2 with a 20v/500mA power supply, not batteries), but I can clearly hear down to 30hz with them, and can easily notice the really sharp drop-off after that which is clearly apparent in
their measurements. Not to mention that I have heard these phones through better amps, and honestly, the difference isn't that drastic despite how much head-fi'ers like to make it out to be. The type of bass I'm talking about here would require a serious change in sound signature. I can only assume that maybe a lot of people that are satisfied with the bass just don't listen to that much bass-heavy music? There's nothing wrong with that obviously, but when I can barely hear the sub-bass rumble and ambiance in
'A Thousand Years' by Sting, that's a problem for me...