jared
Disciple
MH1c is a brilliant iem no doubt about it. It improves with proper amplification too! From what I've read xba 4 is very picky about its source and the way you describe its sound to be, makes it seem like you've matched it with the wrong source! Can you let us know which source units You've tried them with... And btw, If you are ever looking to trade the ck100pros for anything I'm your guy
Although i have amps, but i didnt feel the difference enough, actually mh1c can be driven very easily, it goes pretty loud with 60% on my xperia SP. will check them with powerful amp.
i tried ie8 with iphone 4s, JSYK
About ck100pro, what do you have to offer?