hi all,    i have Radius DDM in ear headphones,  yes i am a BassHead i am using them for a year, and theese are my first in ear somewhat high end IEM.   to improve the sound quality (may be more deep basses ;) )  should i use them with Fiio E11?  will it dramatically improves the sound...

i select ultrasone, because this is the ones that i can supply around me. vmoda etc is not selling around here. Anyway,    Which one will you decide between these two?   Will be used with a Portable Amp,  will be listened   Dub-step , RnB , Electronic etc...    btw i am a BASSHEAD.