Using this for month already. I am using this until then all other IEM are sitting on my desk including Lyra 2 , Vega, se846. This one is as good as other or even better sounding.
GTRX3Sorry I never got chance to hear Fiio f5. But I own Fiio FH5. They are very good with their price range but no near close to imr r1. R1 has wider soundstage with solid bass.