So far the CKS1k on about 14 hours. I have been burning at about 85% volume with these on my laptop with some fast bass songs. So far the bass doesn't seem as engulfing the entire sound spectrum as it was out of the box. The mids aren't as forward but in a good place. I don't feel like the singer is in my "comfort zone"...lol On the other hand... the treble is a bit hot. It seems to have cleared a little and not sound so much like plastic but, its a bit hot/piercing to me even at lower volume ~5% of the max volume. It doesn't take too much to power these. Separation can be perceived but everything still feels like a wall of sound coming at me. I'm hoping the treble calms through more burn in. With just 14 hours a lot has happened so far. I do have to admit the mid bass is a little smoother than the FXZ200. The sub bass on the other hand isn't has prominent as the 200 though I hear it it isn't as prominent as the mid bass. I am more of a sub bass guy but burn in is continuing at 14 hours and going.
Edited by Hawaiiancerveza - 3/9/13 at 4:45pm