You are being too gracious!
This one is a virgin's question, never asked before:
How in the heck does anyone correct (software? hardware?) for a listening room (20' x 25') where every wall has at least two ~3"x4" glass (plexiglass) covered artwork... and two sliding double-doors and two windows?
meh!
I gave up a loooong time ago!
*Sound absorption, reflection mitigation are impossible
*Multi-channel is not an option
*Software room correction has zero ROI...
*When compared to what you can let your mind compensate for