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

I am not. I am barely a cable buyer. Every quarter of a century or so.

I really doubt there are many "cable professionals" here. b4icu did imply that geoffkait was also "working for someone" in that sense which even I think is far from correct. It may be a lot of windmills perceived here.

Big entertainment here,sorry for gramma and spelling!!But i´m very openminded,so going to to try bigger gauge cables just for fun,have order 0 gauge cable 8 feet pure ofc each channel  copper to my speakers,have active crossover so start with mid and top to my brigded amplifiers,and wait with bass to here if some improvments.Have Artistry Dvorak speakers and have unknown Interrim 500m amplifiers so DF?