Nordost Red Down or Zu Wax

I have Zu Libtec, which I also got from an eBay auction via Zu's promotional arm.

I never cut my cables open, but I like what they do. They are a very balanced design with excellent bass clarity and extension (I was thinking of getting a subwoofer until I got these cables), while also have lots of speed, midrange transparency, clarity, and treble air. They take awhile to break in, but when they do they are smooth and natural sounding.

Since I bought them new, I had the 60-day return period. I didn't return them; I'm very happy with them and they are competitive with my $1500/pair PS Audio XStream Reference Bi-Wire cables.

Kimber 8TC is comperable with any Zu SC?

Of course it should be:

Is Kimber 8TC comparable with any Zu SC?

"I took them apart to see what they were made of and there are nothing more than 4 common electrical wires of different gauges for plus and minus, braided."

SHOCKING! Zu cables contain only electrical wires! ;-)

Truthfully, I have been running Zu Ibis cables for several years and I have absolutely no desire to upgrade them. Deep bass, crystalline highs, sweet mids. I upgraded from the Zu Julians and there was a very clear improvement, especially in the highs. I also use their Varial ICs and am very satisfied with them as well.

I took them apart to see what they were made of and there are nothing more than 4 common electrical wires of different gauges for plus and minus, braided.

You mean, like various star-quad configurations such as AudioQuest Type 4, GO-4, CV-4, and KE-4? Or doubled versions such as Rocket 44 and Slate? Or Cardas Quadlink or any number of other speaker cables of high repute that cost as much or more?