Originally Posted by ChrisW66
Any money you spend on improving the room's acoustics, will always exceed any gains you will get from other expensive tweaks.
I fully support and agree with this take - and there are VERY cheap ways to modify room acoustics. Plus I think a/b testing this stuff is faster and easier to do.

main room: 861v4, 2x6000L/R (24/96) 1x5500HC (24/96), 2x DSP33(Rears)
MS200/Roon, 598, Revox b710mkII tape deck, Revox b760 FM tuner, Revox b790 turntable
bedroom: 568.2mm, 3x5000(LCR) (24/96)