“You have to open a door or window to let the pressure out of the room.”

If there is truly something to this that is physically notable, it seems to me that you would best be able to tell by using tracks that you can feel in your chest.

Two come to mind, and I certainly feel them with my system but have no way to close up the room too hear if there is a notable difference.  Give it a try.

https://youtu.be/iSRbINhFqGE

and

https://youtu.be/Zi_XLOBDo_Y

I had bass heavy ProAcs that overwhelmed the room at higher volumes. Opening a door improved things by 90%.

…….yes when playing at louder levels in conjunction with passing a lot of gas . 

Cabbage generates a mighty wind in me so ya this donde right open a windows or suffer