AMDPower said:
wow just did a search for those Etymotics ER-4 and i could not believe my eyes, they are nearly 200 squid
and that is "reasonable"?? then what on earth is "unreasonable", they are so slim what happens if you tug the wire and it comes out, that is basically 200 down the sink.
just out of interest are the Sennheiser HD650 have better sound than these Etymotics ER-4??.
Looks like the ER-4 price hasn't dropped much since I last checked. I thought they would be in the £150 range.
Still, "unreasonable" would be any of the custom IEM (of course, one could argue that the pricing is justified, but anyway). Example would be the Westone ES3, Sensaphonics ProPhonic Soft 2X, and Ultimate Ears UE-10.
In general, you do pay some pay quality/cost for isolation. So between the Etys ER-4 and Senn HD650, I would definitely lean towards the later (unless you have an absolute preference for isolating phones, or happen to prefer the Etys's sound signature).
Back on topic, I've not read any comparison between the "C" edition and the "G" edition. The later was only just released this years, and marketed as a solution for portable gamers (PSP, DS).
You may also want to look at the Etymotis ER-6 series, and the Ultimate Ears UE5 series. I believe that they are priced similarly to the E3C.