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

b4icu:

If you have such a "formula," which implies a quantitative, calculated solution based on quantifiable input factors and the means, instrumentation or otherwise to verifiably measure such quantitative variables, what are the factors that are measured and used to calculate the optimal speaker cable features?

I’ll bet you have absolutely NO such measurable factors and no such instrumentation and are simply blowing smoke up all of our proverbial exit chimneys.

Quantifiable, calculations, formulas, measurable? Yeah, uh huh, right.

Is there an interpreter in the building? 😳

Yes, it goes like:

amplifier + speaker = cable, which in turn means:

speaker = cable - amplifier
or
amplifier = cable - speaker

obviously, neither speaker nor amplifier can be a negative quantity, which means that cable > speaker and cable > amplifier.