"the sounds is equal to Nordost Valhalla." "one idea was that the speaker and cable can act as a giant antenna and send that RF back into the amplifier, so this lead to idea of a “bad antenna” design to minimize pickup (and also transmission)"
So what’s your design idea to minimize this so called antenna effect from speaker to cable to amp? I’m a professional electrical engineer so educate me if you could.
Keep in mind that audio cables are a ’passive’ component. Out of curiosity I checked the website found it’s full of pseudoscience jokes. BTW what's "Nitro Nano" "Speaker Kegs"? Presumably just like other cable resellers like Nordost you buy or import cables and resell them (after adding funny thing slike 'kegs' and braided sleeves to make them look substantial/premium. I suggest you come up with measurement data to back up your claims when you sell them for thousands of dollars. Wish you all the best.