Regarding the Tara Labs RSC Prime 800 that have found a home in my system....warm to me means solid but not bloated bass and mid bass response. Midrange that can reproduce vocals just as well as piano with no particular emphasis on either. With these cables I'm getting superlative high end and percussion without any ringing or harshness.
MIT Matrix 23, which were more than 2.5x the price slightly edged these out in timbre of mids and highs but not by much, not much at all. The Tara's walk all over the MIT's with even bass and mid bass support.
It may be just a case of me trying so many, I've finally found a good match with my system. Funny what drew me back to the Tara Labs was an old pair of Space and Time I bought off auction and included in a shoot out with MIT, Shunyata, Audience AU24, Alpha Core Goertz. I never really forgot how good they sounded so I went back for some newer Taras. Not sure how old they were but basically using some of their current thinking about rectangular wire, though the casing has gotten much better.
One of my better decisions along with my speakers and amp.
