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

That placement works great and is absolutely the very best speaker placement.... 

Not. 

The 38% rule from the front wall, I would never even attempt it in my 23ft long rectangular room. It somehow would make me miss enjoying two thirds of my beautiful room. However I find that the 38% rule from the back wall is the ultimate position for me. I kept moving my seat between 33% and 43% and somehow I always end up at 38%. No joke. It is the truth. That's where my sound comes out with the widest soundstage where the music comes from the entire front wall, left to right, top to bottom, and yet keeping the clear location and clarity of every instrument. I move back a few inches and I lose some that instrument location and clarity. I move forward a few inches and I lose some of the wide spread soundstage all over the front wall. It is that precise. Of course the room acoustic treatments are totally up to snuff as my house of stereo system shows. All this to say the OP's posted articles are far from being garbage. It is literally not very smart to disregard such information.

Your Maggies and Martin Logan's may not work as noted, that article was not targeting this type of speaker. However your Triangles, with the proper acoustic treatment would. Just because a speakers name is Triangle does not change the physics of acoustics.

Amazing, math and physics work! Thank you for the post @baylinor.  If you do measurements, you will likely find that is where the frequency response is flattest.

However I find that the 38% rule from the back wall is the ultimate position for me. I kept moving my seat between 33% and 43% and somehow I always end up at 38%. No joke. It is the truth.

I determined my position by listenings in regular position and in near field... Interestingly my 2 best locations respect this 38%...

My first seat near the speakers is at 38% from the front wall,,,

My second seat from the back wall is also at 38 %...

I just measured few minutes ago to verify...

In these 2 positions imaging and soundstage are holographic and near perfect...I attributed that to my embeddings controls but also i have always be conscious that optimal location for the ears exist, it is just that i never know this %....

😊

I determined my regular position with my ears ignoring this rule at this time...But now it is amazing that it works....Anyway even without knowing the rule it is relatively easy to spot the location with short listenings sessions....i did it...

Interesting..... A number to be remembered....You know why?

Simple...It just POP in my brain...

Because this is the value of the golden proportion, the crux of greek esthetic and acoustic and of Egyptian architecture....Rediscovered by Fibonacci in Italy just before Leonardo....

This is the reason why i suspended my copper bell resonator in the center of my room from the ceiling at the same proportion...I just realized that...

This law of acoustic is older than the Greek theater .... 😊




« Universes passes by but the golden ratio stay»- Some reincarnation of Pythagorus



«All your % is bullshit, i must pay my taxes anyway»- Groucho Marx