At the end of the day, you are just conducting electricity. If it makes you happy to buy a cryo-cable that's been extruded through comet dust, well, that's on you and your wallet. I'm an avowed Monoprice cable slut. Their Certified Premium High Speed HDMIs do just fine. Their Choice OFC 12AWG speaker cable does what its supposed to do. The High Quality Subwoofer Cable performs very admirably as it runs 20' past Amp power cables (5 of them!) and the power strip they connect to
WITH NO DISTORTION OR INTERFERENCE. My interconnects from AVR to Amps are old school Rat Shack RCAs that I've had since music school back in the 90's.
All of my power cables are stock.
I don't have a dedicated circuit for any of my audio gear.
The only thing I did for my system was get a deal on SVS Soundpath Isolation Feet for my subs! And they perform better for it. In retrospect, I would pay full price.

But conducting electricity?!? If you are really that concerned, as was opined before: start with the power company, get upgraded to 3 phase, then have all the wiring and junctions in your home stripped out and redone...
Maybe, then, would buying special power cable make sense.