As the Heir threads have gotten a bit unwieldy and I did not see any direct comparison, I am wondering what people who have heard both of these IEMs think. I am not concerned with accessories or perceived value, just fit, ergonomics, and most importantly sound. Are the sound signatures...

UE 900 vs. Grado GR10   I am a newbie, so please forgive the multiple posting of this question in different threads...   I am interested in any thoughts fellow members have on the UE 900 vs. Grado GR10.  Particularly, I am wondering about sound quality, and especially which is more...