I used the Complies for a long time and liked the comfort and ease of getting a seal. In my ears they didn't affect the sound much, if any, but they did wear out. Right now I'm using gliders I got from Headroom and I think I like them best of all. They are again easy to insert (just push them in, no twisting, angling, etc.), comfortable (partially, I think, because they don't go as deeply into my ears), and they don't affect the sound.
10/14/09 at 2:11am