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


It goes back to cable manufaturars, mostly provide no relevant data! to sales and the users. None will answer this!
Whay do you think that you own now the optimal cable to your setup?
I think I've figured it out. 


128x128b4icu
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OK here’s a little factoid since we’re so engrossed in AUDIO cables. VIDEO cables are FAR more demanding of the TRANSMISSION of the SIGNAL relative to AUDIO. Low capacitance and resistance are REQUIRED to do this and over long distances. If such cables work well for VIDEO, they will also work well for AUDIO. VIDEO transmission has had MUCH R&D to succeed.

But please, continue lculating, (yawn).