Dum, DaDum, Dum, Dumb
I'm frightened of the notion that professionals from neurosurgeons, physicists, and even engineers who are steeped in logical thought and reasoning skills seem to abandon all rationale over any of these audio tweak upgrades.
Buy by all means, buy whatever you want, just don't attribute your discerning superhearing or said tweak for noticing an improvement that is likely directly proportional to how much you spent or whether you can admit to yourself your own confirmation bias.
As a hypocrite, I own Analysis Plus Apex Silver speaker cables.
They use a novel Triple Hollow Oval Geometry. It's a 9awg hollow oval conductor inside a 9awg hollow oval conductor, inside (you guessed it), a 3rd 9awg hollow oval conductor.
They should have called them "The Inception Cable" I'd have bought them for this reason alone, but also because I think they are well made, full of silver-over-copper bling, and they sound like absolutely nothing. They literally don't do anything special or magical.
You may think I'm crazy, and I am, but where I differ is that I'm not delusional about imaginary improvements that aren't there. Or maybe my cynicism and negative confirmation bias won't let me hear an improvement. After 46 years my hubris has lessened and my once youthful golden ears are rusty and I question often their accuracy.
This post brought to you by Analysis Plus Cables and too much caffeine.