@newt
There's educated audiophiles, and then there's placebo peddlers.
What you encountered is the latter.
The former will tell you that things like tubes are bs. Anything over CD quality is imperceptible. You don't need special cables to carry digital signals etc.
@newt
>24bits definitely adds resolution
Yes, but it's not actually needed. To properly make full use of that added resolution, you'd need to blast music loud enough to incur hearing damage.
@newt
More than 44.1kHz 16bit makes sense for mastering archiving, but not for end user.
@newt
>The idea behind using highres audio is that lowpass filters eat shit, and if you record live instruments at 44kHz
Either you misspoke, or you don't understand how recording digital audio works.
The 44.1kHz of the CD is NOT your audio frequency. It's the sample rate. With that sample rate you're reproducing sounds at as high as 22.05kHz. And there's really not much going up there with even classic music instruments. You're not recording live instruments at 44kHz, cause they just don't produce sound that high (and not even at 22.05kHz). It's why lossy encoders like mp3 cut off with lowpass filters even lower, at 16-18 kHz.
Sure, in theory you get those artifacts, but in practice you don't actually hear them, unless you did something REALLY WRONG during mastering.
The idea behind using highres audio is that lowpass filters eat shit, and if you record live instruments at 44kHz, it's possible that some harmonics will wrap into lower frequencies and add noise. It's just easier record stuff in the highest possible sampling frequency and filter out that shit in digital.
https://producelikeapro.com/blog/digital-audio-basics-aliasing-explained/