just got the k72. Crap out of the box. Not for Audiophiles. Nice bass, no distortion, but recessed mids and highs hav a little peak but not an annoying one. If the mids go up a little it would be fine. No contest against the k240s except these are so easy to drive. Burning it in now out of the Geek Out 1000. I'll check later whether they improve with some burn in.