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

@b4icu
You seem to misunderstand my point, all I'm saying here is that even amongst you guys -I do not doubt the intelligence of any of you in this discussion, in fact I'm often impressed- there is a disagreement, so for somebody like me it will be difficult to come to a simple conclusion.
So if I would be using a GPS NAV, whilst obviously it would not be clear in giving me directions how to find the best route, I may switch it off, and find my way the old fashioned way. Don't worry, I have done that for over 40 years or so, and it is not impossible. Currently I do not know if I have the best possible system at home, or may be that I have paid too much for that, I'm fine with that too. I have the satisfaction I'm looking for, so I'm okay.  

Mr.  han_n
I can help you. Please tell me what amp. and speakers you have, what is the required length of the speaker cables to connect them, and what is the cable (gauge) you are using now.
I'll do that calculation for you.

@b4icu
Power amp is CH precision M1, speaker system is Gryphon Pendragon, cable length 3 meter, cable is Kharma reference type, bi-amped, however all connected to the same binding posts, so that will possibly total AWG 4/0 or more. Next year I will add another M1, so may be that counts as well??

Anytime someone says silver is 9% more conductive than copper should be a tell. It’s a tell that he has a broken calculator.

@b4icu

Sorry, I meant the cable type is for bi-wiring, meaning directly after the amp output cable spades (factory terminated) the cable is split into two, so at the speaker terminals it could feed into two pair of terminals per speaker. Luckily the terminals used for the Gryphon Pendragons are really very big, so they can accommodate 2 spades in one terminal, That way I have double the wire gauge. Any use, I don’t know, I already had these cables anyway, and I’m quite happy with the overall performance of my set-up.