HI There
@Kvn_Walker
Interesting video and yes 80hz or 50hz ? My "Vintage" Wharfedale Atlantic 500s 50hz set to Small "seems" to be the best suited for my setup, but very difficult when choosing Atmos music on Tidal, the sound is sensational. Then I play something from Spotify its a bit different (obviously) then I change from height speakers to rear Klipsch/ Sansui/ Wharfedale and 2 down-firing Yamaha subs (Pioneer VSX-LX302 set to 7.2 must change when listening from Atmos to normal Dolby Surround

) Back in the day, when I purchased the Wharfedale Speakers amplifiers were Dolby Pro Logic and strangely enough set to large not small, "yes the option was there then" with a down-firing Yamaha sub-woofer, I was non the wiser then, the sound was still kick-ass but using 5 channel stereo. It really has become an "Ear" exercise today. 80hz, the way I interpret it , would be the default setting in todays times but not for all speakers out there, I've listened to quite a few systems that have cost my mates a fair fortune and when they listen to my ("Vintage Speaker system) with some added Klipsch Reference speakers/ Jamo Height Speakers and 2 Yamaha Subs they are gob smacked.

So yes, it's debatable all the time, in the end Your Ears are the judge as what
@ryanosaur says.