Just got my R02s today...only took about 6 days. I havent listend to them much but enough to know i am pleased with the purchase. I was most concerned with the bass output (I know, I know, but I listen to a decent amount of hip hip, sue me) and I am fine with their output. I first used them with the biflange tips...didnt liek the bass at all and my heart sank some. Swapped to the faom tips and got a better response right away. I am goign to try the other silicone tips as well but I think I just have small ears. This isnt the first time I have had fitment issues. So I cant speak for the iM-590, but the R02 is a good investment.
sigh...now I want to try some Audio Eternas.
Edited by idvsego - 9/8/10 at 12:31pm