K I'm still listening to it right now but all I can say so far is fast transients, grainless sound, sweet bass, forward mids, and the upper treble is a bit recessed. One thing I noticed though, was that contrary to some reviews, these things don't sound closed/in-your-head (compared to my k702). Listening to Jonathan Stout's Crazy Rhythm album and it sounds very holographic/3D. Perhaps not as holographic as higher up models but definitely better than my AKG in that respect. Btw, my setup = MBP>Bifrost>M-stage. The only negative for me is that the highs are ever so slightly edgy leaning towards harsh.......um whoa weird, ok nvm I don't hear it anymore lmao wat the hell...that was just like 15 min ago. Ok yeah guess no cons for me then. O wait actually these things leak like crazy, more than my AKG anyway. Also, can't say I love the color, not a blue person but meh not a big deal for me.