I have heard some really good things for the price of the HA-FX-101. Just wondering if the 201's were supposed to be an upgraded model or not? 

I am a college student looking for some IE's with bass and lots of it. I listen mostly to rock and dubstep, and right now am looking for something to support the dubstep side. I would like to stay under 100$ but if its a little over then so be it. Also, I do encounter quite a few situations in...