Oh, okay. I see what you're saying. I'm no where near as educated on equiment as you are, admittedly. Though, I can distinguish frequency pretty well. I still have ears for that for the most part.
I've tried to replace a lot of my music library but everything is so brickwalled and tin sounding these days no matter what it's played with so I've given up on trying to do that. To me the original pressings sound better in most cases with legacy equipment. So they have all of that modern equiment, yet apparently, don't know how to use it.
I just play with a little mini amp, snout. I've tried some digital software but I don't know what I'm doing with it.