thats what i want to know, much thanks.   so you are basically saying without mod, Fa003>cd880>hm5 ?   how can i improve my cd880 if i get one, any suggestion ?

http://class.ruten.com.tw/user/index00.php?s=kway3c&d=4433616&o=0&m=1   in taiwan, some yoga headphones sell here   i like cd68

good read   I try HD600 & K712 with my ibasso DX100.  Both are very very good.  Impressions:   K712 is 62 ohm, but it's obviously better using High gain on my Dx100.   Some said K712 provide on stage sound.  But the sound have rich resonance, things I hear in the back row of hall. But...

sorry i am new user & don't know how to quote or delete my post

I am very disappointed with this statement. Reviews here in Taiwan say er4b is much better than PT/S, but er4b is discontinued. Now i know why...but wait a minute, i wish etymotic research is a company that are true to science, not to recording industry. But you are candid about this, and I...

I am very disappointed with this statement. Reviews here in Taiwan say er4b is much better than PT/S, but er4b is discontinued. Now i know why...but wait a minute, i wish etymotic research is a company that are true to science, not to recording industry. But you are candid about this, and I...