This all I got to say, I've listened to some high-end IEMs lately, the TG334 and the SE846. I think these are amazing. I don't know when these phones came out, but it's was indeed a great bang for the buck.
Who says it's the number of drivers matter? These have 2 and whoop some iems with unnecessary numbers of drivers.
It would be wise for AT to produce them again, but I'm thinking thinking the parts suppliers do not make the parts for it any more.
If the CK-100 pro is identical, I think it's a gem even at $300 given that there has been so many over-priced iems as of late.
Next for me is Hidition NT6, which is regarded as really neutral and clear CIEM, and I will compare with them.