I've heard both, not sure either is the right choice for EDM since neither of them are very bassy overall, though the TH600 probably has more powerful bass. The TH600 is almost certainly more open-sounding than the AD2KX - sort of a paradox there since the AD2KX is open while the TH600 is closed, but the AD2KX isn't a very open-sounding headphone. The TH600 is closer to the HD800 (mostly because of its clarity and soundstage) but it's not really that close relatively either.
Perfect. After growing accustomed to the HD800, I like my bass lean. I'll have to find an opportunity to audition the TH600.
Edited by ThatNzGuy - 11/17/13 at 3:46am