The room I can use for listening has windows on two side.
So, to make equal distance from my ear to windows, I'm thinking to face a corner.
I receive project audio files from recording studio, and I do not record for final, so sound-proofing is not important. And, I like fresh air.
The pillar at the center is a problem and can not be moved. I'm going to wrap few layers of light fabric on it.
I live in an Earthquake zone, 400+ earthquakes(after shock) in 1 year. That is why heavy things above my head is not possible. Thus, I use light fabric, air breathable fabric, few layers of them which makes 3 or 4 finger thick size. [This is not shown in sketch.]
I hung the fabric by using fishing plastic thread. It starts from back of speakers to back or my head; the fabric is above my head. 2 or 3 feet above my head while sitting position.
Fishing thread makes semi circle, because of gravity the center part of fabric is lower than sides. It make poly-cylindrical shape and it is like a spring.
I'm not sure if it can be called as a "CLOUD" but it is the best I can think at the moment.
You will not believe me, but Bass is punchy and details can be heard. I've been listening same song for few years, "Katy Perry's Dark Horse, Metallica, and few others". So, bass is not a huge problem.
I use semi-open whole ear covering AKG headphone too.
As for early reflection, [which use I'm not sure] I've portable movable cotton filled 2 piece; 4 feet x 3 feet at my right and left side.
And, on it's back side I've 2 wooden curtains [Arabian wooden curtain with hundreds of holes] at right and left side, making around 10 degree slope. Making right and left not parallel.
For Diffusion, I've 3 PRD on my back, around 10 feet away from my back.
2 feet thick 2 feet tall cotton are on right and left wall. I hope, it works. [This is not shown on sketch].
I've attached a sketch to explain.
Please, provide your expert opinion/suggestion.
Thank you !
