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

“In science, there are ways to deal with claims. Some are proven right others to be wrong. History will tell if any other came earlier to claim the same. On both, I never had a guy on this thread to prove me wrong. All claims were of "different" nature. The so called jumper cables is not exactly what I claim, as some need less thick and other more thick cables, as per their equipment.”

@b4icu That’s true, nobody here proved you wrong. But, and here’s the kicker, you didn’t prove anybody wrong here, either. You know, like wire directionality and conductor purity, for example. And there’s a reason for that. In science, you cannot prove a negative. Hel-loo! Be that as it may, you haven’t even proved yourself right. How about them apples? 🍎 

B4icu,

Why do you keep clinging to science? There is no science to your claims. You’ve presented no scientific proof. Where’s your formal theory or formula? You can’t cling to science while exempting yourself from it’s rigors.

A 10KHz signal is only using about 1/16th of an inch of a wire’s cross section. Anything thicker than that just produces more and more inductive impedance as the wire gets thicker and as the frequency increases. A 15KHz signal through a 6 foot 0g cable is seeing a massive amount of impedance. That’s stuff you can look up the numbers and actually model. That’s science. That’s not good for speaker cables. This is very elementary stuff.

Mr. kosst_amojan

From where do you take this information about cable thickness and massive amount of impedance?

This site would suggests otherwise: https://chemandy.com/calculators/round-wire-impedance-calculator.htm

At material = Cooper, Fr. = 0.02MHz (20KHz), Length = 2m, Diameter = 20mm, Z = 0.00012 Ohms!

At 2mm, Z = 0.00143 (>10x worse or higher impedance).

The skin effect is about full power of a 0 AWG @ a Fr. of 250Hz @ 150Amp's. It doesn't need that kind of current at any Fr. Or power. A 1,000W power into 8 ohms would require 16 Amps.

Not to say, that in Audio most energy above 10KHz are harmonies, with substantial less power than the basic Fr. (-20dB less = x100 times less).

For some reason, those who tried it out were very happy with the results.

Sorry, pal, but your numbers are off by about 3 orders of magnitude. Nobody is using 200mm long speaker cables. More like 2000mm. That puts the final equation out around .25 ohm. 

Why do you think some people use Litz wire for interconnects? It's because the inductance of solid wire presents audiblo significant impedance to high frequencies. That's why I can't use Litz wire with my amp. It doesn't present the impedance required to damp the oscillation that can result from a bad ground, and with 1MHz full power bandwidth, it WILL amplify all kinds of things. If your misinterpretation were correct, it wouldn't make any difference. 

Sorry for the "0" on length. The new value is 0.00369 ohms and not 0.25 ohms as you say. Anyway, what about my Q:
"From where do you take this information about cable thickness and massive amount of impedance?"

Regarding Interconnects, it's another thread...

I use XLR, no Litz. The entire Pro industry use XLR, at length of 100 meters and longer, no loss! On 2m, it is perfect.