Originally Posted by lensman
I haven't tried the E2c, but have a friend at work who likes them. I've tried both the E3c and the E5c. The E5c is fantastic - in some ways one of the best headphones I've ever tried. The E3c is perfectly respectable and I would wholeheartedly recommend them.
Note that the only difference between the Ex and the Exc is the colour. The "c" version is labeled as being "Consumer", as opposed to the Professional version. There is no difference in the audio characteristics and you get the same Shure Fit Kit and carry case with them. With the E3's the C version is white, while the "professional" E3 is grey, supposedly to make it less visible when used by musicians as in-ear monirors.
One note is that these earphones have switchable flanges - the rubber part that goes into your ear. I've read that the tri-flange gives you more isolation than the stock flange.
This is definately the case. The standard Fit Kit supplied by Shure with all new E-series earphones does not include the tripple flange moulds. These are available from Shure for $10.60 a set.
But for the best isolation and comfort, visit an audiologist and have them make a custom mold to fit your ears. Shure provide the specs for making custom mold for the E1 and E3 earphones. Professional musicians will often carry their own custom molds. I am tempted to have a set made for maximum isolation and comfort for flying
.