very interesting you have similar issues as I do. I've considered room correction but I too am a tube guy. I've looked at the Lyngdorf as well. There is also the new Anthem 2 ch Pre-Amp with their ARC room correction, link below. That would let someone use a tube amp or possibly some active speakers. there is also a 2ch integrated with ARC. I'm hopping we see more of this in the near future as its really something that works so well.
That Acuphase is unique but hard to come by in NA.
beautiful speakers by the way.
https://www.anthemav.com/anthem-room-correction.php
https://www.anthemav.com/products-current/series=str-series/model=str-pre-amplifier/page=overview