Mr. kennyc
Sorry, you just used an old trick to deverse me to a website of no significance at all. There is no science involved in that site.
BS? a lot!
You really look for science?
The cable's character that matters is its resistance.
As the cable is an extension of the Amp's Ro (DF) it's value of resistance shall be low, to keep the DF as close to it's given figures.
That can be calculated.
It will differ from system to system, by the Amp's DF and required cable length.
It works!
You are kindly invited to my thread of
How to select a good Speaker Cable
https://forum.audiogon.com/discussions/how-to-select-a-good-speaker-cable
Read the feedback of those who were interested in my theory and tried it out, for as little as US $100 or less.
After this try, cables purchased for thousands of $ went to storage.
Geometry?
First try a calculated thicker cable. That's more like science than
Geometry.
Belden is a respected raw cable manufacturer. They do not make Audio speaker cables. They make spools of cables: all kinds.
When I was with a VOA (Voice Of America) station RFP, they asked for Belden. They said specifically what cable (P/N) and how to treat it.
None was regarding
Audio speaker cables.
Using the Belden name is nice, but it doesn't impresses me:
https://www.youtube.com/watch?v=mqFLXayD6e8
:-)