Please note, if you like high treble bright crisp ear fatigue sounds, then this sound setting may be not for you. But if you can appreciate warm sounds from high-end solid state analog receivers from the late 1970s to early 1980s, then this sound setting is definitely for YOU.
Backstory - When I was growing up around the age of 12, I could be found messing with the sound setting on my parent's now vintage and legendary McIntosh MAC 1900 AM/FM stereo receiver. Ever since then, it is this type of analog sound characteristics that has been my benchmark of what I consider good sound that I try to emulate when EQ'ing audio systems and even the final outputs of my Audio Masters today.