@ Starfly- Thanks for that link, it was very helpful.
@ Modular- Thats an amazing write up! The sibilance you describe in the gr07 BE has me leaning towards the Re-400. Is the sub bass in the re-400 really that subdued? Also how well does the re-400 do vocals? Which is the more technical iem?
Yeah, regarding sibilance in general, it may not be quite as much a bad thing for everyone, but I just so happen to find myself more sensitive and the GR07s have a tendency to emphasize on it. I'm not saying they add it in, but in recordings (mainly poorer mastered recordings) that tend to already have it, it seems exacerbated. I wouldn't say the sub-bass is subdued per se, but it's not emphasized in any way...just a very flat response. It may be perceived as subdued though depending on the track...as Starfly mentioned, bass heavy tracks sound good on their own in most instances, but the mid-range has a tendency to steal the show if there is more going on there. You'll notice this in some rock tracks for example. So far of all the IEMs I've tried, the RE-400 is my favorite for vocals and acoustic instruments...while it's not the bulk of what I'm listening to, it's becoming more common in my rotation because of the RE-400 and HE-500 haha. I think they're very close technically speaking, but their signatures are a bit different. I think the GR07 is technically better in bass overall, and is one of the best out there in terms of bass quality/texturing...but the RE-400 has more favorable mids and the treble is more suitable to my tastes.
Edited by modulor - 2/7/14 at 2:19pm