Just got a pair of s700m from acoustic research, this is so far the best earphone for western musics ( american pops and some orchestras etc. ) I have heard at that price but no one is talking about it here....
The build is rigid, the enclosure is metallic (tungsten carbide) while the outer layer of the cable has kevlar content which makes it really tough, yet quite soft
Some short impression: （40 hr burn in)
Bass is punchy detailed and well extended (it punches really hard )
Mids is clean and falls back a little bit, while the treble is well extended.
It surprises me as the bass is really punchy but still, the mids and treble are well seperated and clean.
Sensitivity is low so an amp or a hi-end dap is needed, I'm testing with discmans (d-150/250) and also with ipod classic plus different amps, also using cowon J3 which seems to be lack in output power.
They are very comfortable in my ears using their special ear tips. The iem comes with a nice portable case too.
I have never writen anything for an iem in head-fi but this time acoustic research impresses me a lot.
Anyone using this iem?
Edited by Rhcw - 5/21/13 at 9:41pm