Maybe for the flat-bass for under $500 seekers, the HE-400 is the way to go?
I have to admit, I'm still wary about pulling the trigger on the HE-400. Everytime I do, I worry about the reports of painful sibilance.
I just want a headphone with great sub-bass, as well as mid-bass.
It shouldn't be too difficult to EQ sibilance out without loosing much.