What is the Silliest Accessory You Have Ever Seen.

Oh and all the bad that 90 degree angles inflict on our ears.

One of my acoustic controls recommendation is the use of polihedral flowing surface for each corner of the ceiling.... 😁

The room lens worked indeed for me and inspire me one of my best  idea about the Helmholtz Fibonacci organ or room tuner and that work very well.... ... Thanks to you....

I must wait to replicate the hallograpgh tough....

Great post thanks.....I will read the info....Wow the book look very good.... Hundred thanks!

docfar, not true! Music always sounds better with the lights out. But, that is exactly what they reminded me of when I first saw them, candle holders. 

"Music always sounds better with the lights out."
Not for every listener.   

@roxy54  Your ability to focus on music improves when you have no visual input. It is why we have had so many totally blind fabulous musicians. You transfer sonic interpretation to the visual cortex at the back of your brain. Proven fact. 
If your system does not sound better with your eyes closed you have work to do. 

My thoughts on why the music is better with lights out or eyes closed.

The brain is a powerful processor but it does have limits. So if you close your eyes and listen in the dark does your brain use the now unused processing to further enhance the portion that processes the audio portion. Tom