Hmmm. I was hoping for some info regarding the exact frequencies. In my opinion the RE0 would need some boost at the lower-center midrange, especially 1kHz, not in the upper midrange. The boost I am considering would make vocals closer, add presence and some volume to them. 3dB would be fine, but I am guessing... a bit more would be pleasant too, but I wouldn't go over 4-5dB. After that point, there isn't much need for a boost.
Anyway, these are thoughts for anyone wanting to equalize them.
I didn't pay attention to the actual freq. resp. when I did the mod and I already reversed it back to its original form (so I can keep it as future reference). You can try it out on one side of the earpieces if you like, but I am probably won't do it again on myself.
I don't know if it's been done already (haven't read entire thread) but why doesn't someone email Fang about the mod and maybe he and the team at Head-Direct (or whoever OEMs for them) can remove the foam for the next production patch and we will all be winners!
Us Head-fi'ers as we don't have to do the mod + instant SQ quality increase and Head-Direct since it lowers production costs for them!
The two holes on the back of RE0 really doesn't impact soundstage by much. As far as I can tell, RE0 is closed in design (unlike RE2 and RE1 which are semi-opened), putting more holes on the back probably will only change the whole sound signature and create sound leak.
200 bucks? They better be good for a dynamic driver. I know, I know, IE8 and EX700 are quite ridiculously priced, but not many others come to mind...
^^ That's what I said November 21st 2008...
Got the RE0 today, and right out of the box they sound really good. Seems they need some time to settle down, like most dynamic drivers, but so far they already sound like Atrio territory - but with better treble.