I like that , “ the dark arts “. Nice. Yes I agree with you 2x6. I don’t use room correction but only bc I’ve never owned an avr that has it. Some would call me “ old school “ but it’s more like “ tight budget “ for now.
Well here’s a link to one of this dudes videos.... his products aside is the information he is teaching accurate? My gut says he’s close as it seems logical but even in my very untrained way I noticed some questions..... like the angle the sound bounces off the wall to make it back to the listener..... what creates that angle?
Anyway without getting overly complex here I think what I’ve learned is there are some really good things you can do at a basic level to improve sound.
https://youtu.be/d7rOtBvz8OU