Wow, I have trouble wrapping my brain around how power delivered over the last 3 feet thru an uber expensive cable of "better quality" than the 28 miles of cable between my house and the hydro electric damn is was generated from can be any better than a generic cable of the same quality of cable. Can a superconductive power cable suck more power out of the wall than it can physically deliver?

What magic is happening inside that cable to clean up the power from the outlet to your AV gear or what is generating such noise inference in your power in that last 3 feet?