[shigzeo]

i am a former both owner and i am one of the biggest atrio supporters. they had only one flaw: not the best for trance. other than that, for me, they handily beat the westone and the shure e500.

they offer a more natural sound like well, you can relax to. um2 are comfortable but quite piercy (for me in the treble) though the atrio extend much further (at least they can make music past 18 or 19 000) which i have heard in signal tests that the um2 just was dead silent for.

comfort and isolation: westone
cable noise: no one compares to westone.

but sq overall: atrio. as soon as i got used to the atrio, i could not go back to the um2 and sold them. one major drawback of westone um2 is the hiss from any source at all ever. you either need an impedance adapter or an amp. the atrio are not as sensitive and made music sound good even just dap and atrio.

they change nature more than westone with tips though: dark - foamies from shure.

detailed and stage: use the stock biflange

best of both: shure grey silicon tips.

Atrio are special by any means. some people prefer more expensive phones but i have a feeling it is either fotm for that phone or just the psychology of a more expensive phone