Stay skeptical.
A little science if you dare:
Vinyl outgasses. Vinyl is actually a very brittle plastic. You know that film on the windshield of a new car? Yea the rather toxic oils used to "plasticize" the vinyl. PP or PE do not outgas much compared to vinyl and they are both far better dielectrics. PTFE even better and more stable. The process of outgassing is not hours in your system, but time and temperature from manufacturing. Vinyl starts immediately and lasts years. ( split dashboards!) PP takes decades to even measure any change. In a laboratory, I do expect plasticizer outgassing to change the dielectric. Audible? Well we try not to use vinyl anyway. GOOGLE about plasticizers ad you will find most of the research is involving exposure to solvents. Yea, why the fuel line on your chain saw keeps cracking! I did a lot of laboratory testing on this subject as it relates to "O-rings" in various solvents. Different use case, same chemistry.
Now, after 150 hours what is the difference? Your BRAIN has re-mapped to convince you it is better. Our brain lies. Always. Humans are never objective. If so, fine and money well sent because it is your perception and enjoyment even if there is no actual change. Electrolytic caps do "form". Tubes do age. Speaker suspensions change. Not much else changes in modern electronics.
Diodes making the cable directional? Guess this prestige company has never heard audio is AC. That alone should unmask the scam. Only shield termination can make a cable useful in one orientation. The conductors don't know the difference. In actuality, an oxide layer or discontinuity in the crystal structure acts more like a back to back diose, not directional anyway.
Maybe their cables sound fine. I hope so. Most do. It is actually not hard. Their claims are total made up to sham the non-technical to spend a lot of money for their ego. P.T. Barnum had a lot of wisdom.
"Fluff" is a politically correct way of saying BS. "Prestige" is the nice word for snake oil.
Not mentioned as a place where interconnects may play a larger roll is with passive preamps feeding long high capacitance cables into low-ish impedance inputs. You can do the math. With a max attenuation making output impedance as low as 5K, and some inputs as low as 10K, it does not take too many "puffs" to roll off the top end. My advice would be to drive cables much longer than a meter with an active stage rather than searching for magic cables. Hint: Pro audio used high current higher voltage balanced lines to overcome this limitation. ( xlr cables) Well understood. Science and engineering, not "fluff"
