One useful experiment I think audiophiles should do is to record themselves talking in a living room or kitchen or dining room. Then listen on headphones.
What you will hear in the headphones is all the room resonances your brain is actively removing while listening.
So, taking this out of audiophile land, why treat a meeting room? Well, because your brain actually works less on acoustic filtering and you'll feel less tired. Same for classrooms, and auditoriums.