dazzerfong
1000+ Head-Fier
I don't know why nobody had mentioned this, but if you want to reduce the sibilance on the trio, the most efficient way is to use EQ. That sibilance bothers me as well, but mostly on female vocals tracks.
Anyway, the trio has a treble spike at about 7.8k. if you only have basic eq, lower 8k by 3db, or by however much you feel makes sibilance taper off.
If you have a full eq (like the one in uapp) reduce 7.8k by 3db and a bandwidth (or Q) of about 5. This is my best estimation but I could be off, so if someone wants to chip in that would be fine.
Doing this will really reduce those nasty "SSS" sounds.
SSSSSSSSSHHHHHHHHHHHHHH.........
Nobody mention the devil's tricks! EQs are for heathens!
Seriously though, at this price range, if sibilance bothers you in a particular earphone, move on to other earphones.