LOL,I actually like the bass response of Grados,its the comfort,or lack thereof when my upper earlobes get pinned to my skull that keep me from getting a high end pair.
I know with my ATH AD2000 ,which has a similar fast(lightning)guitar forward sound as the Grados,when plugged into vintage gear bass is visceral at the cost of speed and bloat...same with my Fidelio X1s,my son's 80e and my long departed Alessandros too.
Yeah. I'm just goofing on the RS-1's. I dearly love the sound of Grado's, but yeah, they kill my ears as well. I haven't tried their IEM's yet. Any experience?