x2 Until we see some internal shots, all we're doing is guessing
EDIT: Nate said it best.
and someone needs to make an all in one e-stat and dynamic amp.
If youre going grado, go MS-2(i) instead of the 225.
and actually, if you dont mind clip ons, the Yuin G1As are pretty good and much more grado-sounding (punchy bass, airy highs) then the ESW9.