I listened to the e2g's for a bit. A friend happened to have a pair. They have noticebly more bass than the e3g's. I didn't listen long enough to determine how refined it was or anything (and I'll admit, I'm still trying to train my ears for hearing details like that). One other thing that I kept noticing is that compared to the e3g, the mid range is much more laid back, and details in the highs are harder to distingush. Based on my short session with them, if I had decided to buy them instead of the e3's, I would have still been pleased. I like the way they feel on the ear more than the e3g.