If you were really serious then why not buy a small plot of land well away from the city and build a custom man cave (yes it will be a man!)
Oh and don't forget to get your FLACs recorded in 32 bit - you'll need all those extra bits to be able to treat your golden ears properly 8)
This is my dream retirement concept, except mine would be to continue taking pictures of the night sky. But thanks for the idea. Now I can plan on listening to high quality choons while I'm at it!
Even a bit would make quite a noticeable difference for a few hundred bucks (or less, DIY).
Zero difference would be 'running in cables', and other things they read about on forums.
For even more fun why not (re)read Sir Terry's oeuvre. Pissing yourself laughing is good for you.
From my limited observation of flat-earthers on YouTube, they at least seem to be willing to do measurements but then either misinterpret the results (due to lack of knowledge) or knowingly twist them to say what they want to say.
Audiophiles on the other hand seem to reject the whole idea of taking measurements.
https://i.imgur.com/zFdITcQ.png
And if you are interested I also have a scattering-free, anti-jitter bridge to sell
There is no rationalizing with an audiophool.