Experience with Black Cat and/or Triode lab Wires

I am considering Triode Lab Wire or Black Cat. I’m aware of the unfortunate passing of Chris, so I’m willing to buy used or new. My price range is $400 per meter for (rca/rca) interconnect, and $600 for SC’s. The Triode wires are priced in line with my budget, as are the entry level offerings from Black Cat. I have concern that while the Triode cable have a strong following, perhaps they’re geared toward low power amps and high efficiency speakers. Their company is called Triode after all. My system is a Naim XS integrated with phono and Harbeth C7's. I need Interconnects for Well Tempered Simplex 2 (RCA outputs) and then for step up transformer to phono. Also need speaker cables.