@unreceivedogma I did basically the same, from a 25X23X11.5 dedicated less expensive room to a very expensive, near SOTA 20X15X10 room where it was extremely easy to locate speakers correctly without DSP. It has 16-17" thick multi-layered and sealed walls, a 12" 3000 psi steel reinforced concrete floor and built-in bass traps using activated carbon filtering chambered boxes throughout the walls.
