What difference does sound enhancer make I turned it on and it sounded different not sure if I like it better than the reg but I was wondering what about it did to change the sound as much as it did made it seem like it had more dimension if that makes sense.

I've searched around quite a bit and haven't really found an answer or if I have I couldn't understand it lol but with an iPod 2G and a pair of IE7s would an amp of any sort help out a signifigant amount and if so what type? I don't have the IE7s yet and the only other headphone I've owned...

Is this a good combo I have a pair of IE7s on the way and was wondering if I should amp them, then if so is the T3 good for this setup? I searched for something similar but got a lot of obscure and huge threads. Also if the T3 wouldn't compliment this much what would and be about the same...