i will be using it for only iems, i dont plan to use headphones, i listen mostly to edm, pop music. most of my music collection is in flac format. ive been looking into sony nw-a35/a45, cayin n3, shanling m2s, xduoo x3, fiio x2 2nd gen, fiio x3ii but i cant seem to make up my mind on what to buy.