Yes, I also try to fix as many of the sound issues with room treatment and speaker placement. With phono cartridge selection, you can also tweak a bit. Tube rolling has also helped. Luckily my Tannoys have high frequency energy adjustment pads that help too. But these are just subtleties that come after the room issues have been resolved.
I'm all in for any way to adjust/equalize without another circuit involved. My system has no tone controls so the room set up is critical to me. But then, I lucked out with an old house with nice formal rectangular rooms.
One of my dreams was to own an Eichler Home. But the open architecture that's become so vogue these days really doesn't help.
Give me a pre 1940s home any day. Heavy plaster walls, l solid wood floors and formal, mostly symmetrical room shapes.