Pros: Amazing isolation, Transparent sounding, Extremely accurate, High degree of imaging in mid and treble
Cons: Bass is uninspiring, Product out of the box is a poor representation of the device -- burn in absolutely required.
First off let me preface by stating that I bought these on a whim. I had read many things about Etymotic's penchant for accurate reproduction. The initial impressions I got from these were a mixed bag. First off, I love the isolation factor, putting these on in the middle of a crowded communal area was like stepping into a library. I tried the various silicone pieces which were provided as well as the obnoxious chunks of foam and settled back on the medium sized triple flange which was installed on the unit from the factory. These tend to sit a little further inside the ear canal, however once they are in I didn't find them to be any more uncomfortable...(read more)