Sorry for the rather long post.
Recently I've been thinking about getting new headphones because I don't think I bought the right ones the first time around. I listen to mostly metal and rock, and currently have Turbines, M50s, and the M6. My problem is mainly that they can end up sounding overly bassy and muddy on some tracks (the M50s are definitely the best, but even they can start to get muddy during fast rhythms and solos).
I decided on IEMs mainly because I'll be using them out and full-size headphones are annoying to bring along or carry. Isolation will definitely help on the bus. I also don't want to have to worry about the extra cost of an amp. I don't have a lot of money to spend, and I want a pair of IEMs that I can use everywhere for everything, without getting the urge to upgrade. Ideally I want something to last me through high school and college, and if I have some money after that I may look into customs - that's quite a ways off though. My budget is about $250, as I really can't justify spending any more at the moment.
I read joker's entire comparison thread and thought that either the Audio Technica CK10 or Fischer Audio DBA-02 would be my best bets. Each are supposed to be fast, clear, and detailed without overemphasized bass. I debated and went back and forth for a while, and looked at other threads to help. The threads did not help. I saw everything from the CK10 to IE8 and MTPC recommended for metal, and I really got confused. I think I will prefer the signature of the CK10/DBA-02 to other bassy alternatives, because I don't like the overemphasized bass of the Turbines.
So now, my question: What is the best sub-$250 universal IEM for Rock/Metal that can present the music clearly, quickly, and realistically and can serve as an end-all be-all headphone for the time being and the foreseeable future?