No one actually knows how to lculate what speaker cable they need

" Even with a mid end system, before you lay down your equipment, it needs a proper room and some excellent sources (recordings). Are you sure you have that as a start? "

Ah, are we now back peddling at bit?

Not sure I go along with the presumption that Kimber 12TC are “high end cables.” I guess we need to define what high end cables means.  Kimber does have good name recognition going for him, however. I’ll give him that. By the way sales of fake Kimber 12TC cables appears to be rather brisk on eBay. Maybe I’m missing something.

On another subject I’m not sure why people assume that a given set of components have a certain predictable level of sound quality or that photos of a system reveal anything about how it sounds. There are way too many variables to be able to make such judgements.

Kimber 12TC Electrical Specifications:

(Cp) parallel capacitance: 494 pF / meter - (Ls) series inductance: 0.09 uH / meter - (Rdc) dc loop resistance: 0.005 Ohm / meter.

geoff is correct, here is an ad for fake Kimber 12TC

https://www.ebay.com/itm/1pair-FOR-Kimber-12TC-8N-OCC-Main-Speaker-cable-Rhodium-plated-Y-plug-1-5M-...

https://www.kimber.com/counterfeits

Neither of those responses really answer my question, other than: we don’t know how it’ll sound.

quite the punt then at $1000 from here: https://www.russandrews.com/kimber-12tc-speaker-cable-biwire-kimber-bananas-31909999101/

I’m not trying to be cryptic or trap anyone. An important factor in any good experiment design is to determine what success looks like.

I’ve done everything I think I can: dedicated power circuits, decent components, good sources, good speakers, room analysis, there’s really not much more I can do. I’m trying to put myself in the best position to determine if I can hear a difference between speaker cables. If I can, great, if I can’t, then they’re going back. They might go back anyway if they don’t make enough of a difference. And no, I don’t know what “enough” is for me to feel like I’m getting good value.

anyway. I’ll report back when I’ve tried them out.