Friends, in classical music we often have plenty of stereo bass information. Of course, if you can make that work well or not in a small listening room, that's another question.
@mitchco has helped me remotely with measurements and corrections, and I'm so glad I asked him to. I'm listening to my new sound and enjoying it like never before!
If you are planning to do some room correction, I can give my warmest recommendation to let him assist you. Great work, great support!