Mr. milpai
The formula: I’ll keep it to myself. It is not to be given away. If you would read the thread, you would find more than one to be answered about the formula.
Your ideas of implementation of a 0 AWG DIY is up to you. You can see some solutions in this thread.
For some reason, you think that 0 AWG is good for all. Some need less (like 4 AWG or even less) and some need more, if the cable gets long or the DF goes really high.
Please be kind to pay attention that the AWG table is not double incrementing by 2 on each number of gauge. If a cable would require a 4 AWG for 2m length, it will be 1 AWG on a 4m length.
The part of what cable you need, I’ll calculate it for you, if you be kind to provide:
Amplifier’s model and brand.
Speaker cable length.
Speaker’s model and brand.
If you will read my answer to Mr. stevecham, there are some exceptions, regarding speaker technology and tube amplification. I’ll take care of that.
How do you take that requirement and turn it into a cable, is up to you. If so many cable makers from the industry used to do such cables, by your say, you might find one to buy. It must cost nickels as those are now left over’s. The last time I checked, those who may offer such a thick cable asked something north of $40k. But money should be no issue for a real audiophile that follows its ears. Common sense might be more difficult commodity to find!
The other way is to get a DIY project. There are plenty of options on eBay for cables. The problem is getting the ends fit a binding post. Some creative solutions were shared here, by Mr. keppertup and Mr. conradnash as well as with the sonic results. There might be more ways to do it. For anything thicker than 0 AWG, like 2x AWG or 4x AWG, a more difficult solutions will be required. It might also get more expensive…