Just got a pair of the R6's and I'm actually quite impressed. But like every earphone I've tried it's not perfect. (klipsch x11, s4, senn ie800's, jbl synchros s200, akg k376)  As someone who plays percussion I have deep appreciation for detail & accuracy. I want a snare drum to sound like a snare drum. I want cymbal crashes to sound like cymbal crashes. But anyway, you get the point, lets talk about the pros of this earphone: - The overall soundstage is improved compared to the S4. - These are by far the most comfortable IEMs I have tried...