ive not had problems with sibilance - but then i don't use headphones known for sibilance. i am using the atrio m5. had i still had my um2, i am sure that i would be complaining - that is why i sold them. i am very sensitive to hiss and even the cowon d2 hissed way too much with um2. i still hear a bit of hiss with the atrio m5 without an amp, but with MY amp, the supermicro, the hiss is almost nonexistent. if you have properly sensitive iems, then there will be hiss even with a dedicated amplifier - fault the iem, not the source. iems are way too sensitive to work with modern players. they came out later than the players and they for some reason are not matching themselves to the output of the players well enough.
what iems or phones do you have that give off sibilance with the itouch? i have found mine to be quite the mature sounding source. it does not go overboard on anything at all. much easier to listen to for long intervals than the d2 i have had. it is almost as adult as the meizu m6 sound in fact (for me other than the terrible hiss, one of the best players ever)
why didn't anybody say this before..
