@oldhvymec I never claimed to be the pinnacle of anything, or that my sound is perfect because it far from it.
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That's OK it wasn't addressed to you it was addressed to Master M and his lab. Someone said they couldn't tell by looking, so brail is out too, I find it odd what folks can tell from picture.
I was told a picture is worth 1000 words. I agree. Not to argue at all, just state some simple facts. I didn't figure out my rooms 2 or 3 years ago, I figured them out 35 years ago. That is my whole point. I don't have to go through a 5 year study of my room. It was done in 87-89.
I'm sorry if I'm a little ahead of schedule comparing notes anyways. I thought that was the point. If Master M's 2-3 year journey has netted him good results be proud of me Master M. I did it 35+ years ago. That is all I'm saying.
BTW it didn't cost to much, I used what was left over after building the rooms myself, including every nail and screw that was driven by me, not someone else..
Like 2 128cf Traps and a flush wall gear rack on a 24" x 36" x 16ft concrete slab with 8" x 8ft friction piers. It's actually reinforced concrete with cable not rebar.
The experiment for me was done a long time ago. I may not have quit the look of your lab Master M, but I assure YOU, my working shop is close.. The storage shop is a little more polished, I quit hanging meat in there anyway. But the meat hooks stayed. It impressed the neighbor lady, She likes tight black leather too. So do I, on the floor. "She can leave her hat on"
SO, before everyone gets all fluffy, some folks did do their homework a long time ago. BTW not a single thing changed.
My traps are based on the Vicoustic Vari Bass Tunable Helmholtz Resonator theory I can open and close the trap face to adjust the frequency I want to trap, THEN turn the Vari Resonators to fine tune the standing waves that still need a little convincing.
See Master M. I payed attention it was 62 yeas ago when my father took me into the Gothic Cathedrals of Spain, England and France. They use the Helmholtz theory to tame rooms and also as a spying tool, to throw sound in a particular place. Priest had one commodity, confession.
With great respect.