Tcscata, here is another thread on the Forum about “current” Teo Audio cable’s:
https://forum.audiogon.com/discussions/anyone-try-teo-gc-jr-interconnects-yet
I don’t know the relationship between the cables on their website and their current offerings.
I believe the (GC) Ultra includes a single liquid metal conductor. But with respect to the 4 Teo Audio IC’s you’ve listed in your post, their quality increases as follows: GC, GC-Jr, GC2, GC-Ultra and Kronon.
https://forum.audiogon.com/discussions/anyone-try-teo-gc-jr-interconnects-yet
I don’t know the relationship between the cables on their website and their current offerings.
I believe the (GC) Ultra includes a single liquid metal conductor. But with respect to the 4 Teo Audio IC’s you’ve listed in your post, their quality increases as follows: GC, GC-Jr, GC2, GC-Ultra and Kronon.