@rvpiano exactly. Which is why I run a second tonearm and cartridge in my system set up specifically for mono. The sound quality of fifties mono classical is astounding and is some of the best I have. I also revel in listening to Casals for example in Japanese pressings bringing out the best from the 20s and 30s
The same is also true of pop recordings, I have a soft spot for the Chordettes for example.
I don’t think many would count these as audiophile but they knock the socks off many of the clean but souless modern classical recordings