Value, indeed. Greatly preferred to recent purchases of 2x$ or more.
Having never heard the CK10, I can't compare, but these can (depending on tip, insertion depth, seal, you know...) be bright. I'm pretty sensitive to 'overly bright' (hence dumping a couple of the Beyers for that reason), but these don't go there. They also have never added any sibilance to any of my files (all uncompressed or Lossless).
They seem to actually have changed slightly... or my 'hearing' has. Last nights insertion rendered the bass more apparent and the highs tamed a bit. Could be psychoacoustics, allergies, or x-over break-in.
Either way, I found lasts night's session to be extremely enjoyable. Very naturalistic. I'll be doing some actual tone testing tomorrow... (today my A/V computer is busy doing other things.
), so I'll be able to discuss things a bit better, but...
Holy crap, these puppies seem flat... dead flat neutral across the spectrum. But without tones, and just listening to test tracks, I can not detect any emphasis or recession anywhere. High roll-off is way up there... and the mids are damn clean. Very natural reproduction.
So far, if there is a roll-off or recession anywhere it's in the lower part of the spectrum, maybe at 160hz or so. The extension
seems to be there at times, but it's pretty held back. Bring that up to neutral would be a benefit, but not a deal-breaker.
Comfort is outstanding. These can be inserted as deeply or shallow as you wish. It also means that different size Olives can be used to create a good seal at different depths.
Great cable. NO microphonics. The cable is like the UM2, but seems a bit more sturdy. The earpieces themselves are very easy to hold and insert. No juggling or maneuvering around wires or flipping cable connections. Cable is good length for movement, with a large V neck section. The 'keeper' has a tendency to ride up as I work out... kind of odd... and eventually touches my chin. No biggie... I just push it back. If I push it all the way down to the Y, it doesn't ride up, but if it's about half-way... up it comes!
Until I actually do some more critical testing tomorrow, I don't have much more to add. I'm very glad I got these. Kudo's to those who wrote so favorably about them and made me curious.