INKs sent me some graphs dome of the gr10 vs EQ-7. While similar, the grado had more bass and less elevated lower treble with a bit more extension. Grado is more controlled in the upper ranges and less so in the bottom. There's more to this than response so I'm not debating what you heard for yourself and I'm not implying for a second that Grado is best or perfect. Nothing is.
p.s. and this isn't relative to the above post that does differentiate the MA's. They are also about 5 ohms different in impedance at 1khz which doesn't happen in modern tolerances of the same driver. They're not.
It's the size and isolation comments that kept me from trying the ex1000 when I had the opportunity. I really do appreciate an easy fit and compact carry. I think when you get to this level, there's no best but instead a preference and usage for need. Grado with deep insertion isn't a large picture but go up a tip size (if possible) and they sound very open if a bit less warm. I also find that DAPs and file choice can make or break an IEM that's as informative as these types. There are definitely synergisms involved and as stated, break in is more important for some of these.
Edited by goodvibes - 10/25/11 at 2:51pm