Perfect Speaker Placement - Put next to the back wall as much as possible.

That’s a recording studio setup. If that’s what you’re doing, fine. Listen to the one above. He pretends to know a lot about it. If doing a home system though you could hardly do worse. Talk about unwilling to learn.

My system https://systems.audiogon.com/systems/8367

Mike Lavigne’s system. https://systems.audiogon.com/systems/615

Similar size rooms, vastly different budgets, yet look how similar the results, at least in terms of speaker placement.

Let me assure you, Mike Lavigne is the furthest thing from, what did he call him? Oh yeah, a clueless parrot you will find in all of audio. There is a clueless parrot here but its not us.

Our speakers and listening chairs are way out into the room for some very good reasons. Which you will understand very well only after absorbing an awful lot of information, which can be done most efficiently by reading the Harley book I recommend above. 

When Mike Lavigne built his room he hired an acoustics expert, not you Miller and you still fail to understand it is not simply about a recording studio (where the sound YOU listen to was created) but about understanding the REAL impact of speaker placement and acoustic treatments and equalization on actual sound output, not perceived impacts from limited experience and limited knowledge.   Mike knew his limits and hired someone.

In a small room putting speakers far into the room is often not possible. In a large room that is not dedicated or a home theater room that may also not be possible. However, if you understand the mechanisms at play then you can use speaker placement close to the wall with little negative impact. Understanding room nodes, symmetry, and measurement further improves setup.  Some people have more tools in their toolbox than a hammer.

Looking at it, briefly, these recommendations are for the driest possible sound. As close to wearing headphones as possible, which is good for mixing, maybe not for listening, and certainly not how home speakers are balanced, especially when it comes to bass vs. mid and treble ranges.

He's also relying on a lot of damping behind the speakers, not just bass traps.  It's pretty close to the old Live-end, Dead-end technique which made a huge splash int he 80's and then kind of disappeared from audiophile consciousness.

Really hard to imagine this set up working for a living room.  You do not have to follow this advice. Look at your speaker manual for recommended placements and ask pros at GIK or ATS acoustics for advice.

"The guidelines I’m going to give you are based on best practices for both pro and home recording studio setup. But most of this advice applies whether your room is a mastering studio, hi-fi listening room, project studio or home theater."

1st sentence: fine, OK.
2nd sentence: wrong, wrong, wrong. Pity you crossed that bridge.

Yeah, not for home use. The long wall is usually the best wall and your loudspeaker will determine where it NEEDS to be. From Maggies out 6 feet from the front wall to Klipsch Cornwalls that like wall placement, your speaker design overrides all pseudo science formulas.