@jrimer
”ALL I ASKED WAS EMPIRICAL EVIDENCE THAT POWER CORD TECHNOLOGY HAS MADE A QUANTUM LEAP IN THE LAST 5 YEARS. That’s it…”
@whipsaw kinda nailed it succinctly. +1 . Simple “NO”.
(1) CARDAS ,for example are a very fine cable supplier who has patents on their bespoke cable designs , and use their own custom bespoke OCC copper source But even they don’t pontificate with such hyperbole claims.
Price has no bearing on whether a different cable will or will not be an improvement in your system synergy.
"Price is what you pay. Value is what you get.” -Warren Buffett
(2) As @whipsaw highlighted above, it is completely a bespoke trial and error experiment that cannot be measured neither empirically or otherwise.it may be better, or maybe not.
It’s unique for each user … full stop. Different cables have different sonic signatures
. Hence such aggressive claims cannot be accepted or generalized in the first part with any credence…. , and certainly entirely dismissable for any hyperbole claiming “quantum leap” improvements.
Here are a couple YouTube videos on CARDSS cable construction differences among them vis a vis the other contenders and the pretenders …they may or may not stir your drink.