Yep recabled em myself. There was quite a bit of improvement, more detail, clarity, the bass was less muddy. I love the sound
D2000. No question. Its just a great can at any price range. But the CKM50s have better isolation.
I think I use them more cuz i just got them, or cuz they're easy to use and convenient. I think I'll switch back to my D2000 for home use and CKM50 for portable use or Soundmagic E30 if I end up selling the CKM50s. As far as SQ goes, its a close one, I'm fairly inexperienced with IEMs so I don't really know. I'm going to go ahead and say the D2000 is still a good bit better. But the Quality of the CKM50 is really good for $30