What’s the benefit of placing speakers like this? (diagonally at the corner)


Hello,

I am curious about the speaker placement.
(I try to upload a picture.... not working well...)

Here’s the link to Positive-feedback website containing the photo of speakers.

https://positive-feedback.com/audio-discourse/vinnie-rossi-l2i-se-integrated-amplifier/


Let’s say this is the corner of the square shape room.


——————————————-
| [amp]
|  
| (Empty) (Empty) [Sp2]
|  
| [Sp 1]
|
|


(Facing toward the other side of corner)

Amp is placed at the corner of the room. (Diagonally)

Then Speaker 1 (Sp1) and Speaker 2 (Sp2) are placed diagonally too.

Amp and speakers face toward the other corner of the room.


I think this this is V.Rossi’s Audio show room picture from 2019 with QLN prestige 3 speakers.

What is the benefit of this kind of placement?
128x128sangbro
The primary reason is much smoother bass as the standing waves are not allowed to multiply as much as in a rectangular or square room.
Best,
Jim Smith
Echoing Redwood set up a pair of Celestion 600s that way in living room 30 years ago looking to save space and accidentally discovered the added benefits of clearer and cleaner sound on the whole. Speakers in rectangular rooms sounded muddy even when separated from all walls so I would assume the mid bass was tamed in this configuration avoiding sidewall reflections. Soundstage depth also benefitted. 
"...Sanders set up their ESL's at shows diagonally..."

And well out from any walls. They had the best sound at The Show.  
100% in agreement @russ69 (I heard them at the Irvine Show, two different years. Best sound at both shows imo). To hear them is to want them! I first heard of Roger when he wrote his multi-part article on ESL’s for J. Gordon Holt, published in Stereophile in the very-early 70’s iirc.
It goes against the grain - yet:  I have actually heard this once.  It seemed absolutely fine.  There is tons of great advice on speaker placement - I think all of it is well meaning and useful.  My humble two cents* just keep fiddling and experimenting!

* hoping you don't have heavy and spiked speakers!