Those viewing distance numbers seem a bit off. Ideally, you'd want to sit about 10ft away from a 100" screen. At that distance, you would still benefit from 4K.

https://www.rtings.com/tv/reviews/by-size/size-to-distance-relationship


Axiom M5HP VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)