I Am not an acoustician, but i know enough after my successful experiments to know what really matter in audiophile experience... If someone dont want to threw his money...My posts are only here to motivate some to play with simple no cost acoustic experiments...
The others will do what they do best : consume price tags...
This virtual page dates back to my beginning and many people mocked my experiments because of low price and ugliness of the no cost materials i used to...I am not crafty and no one explain how to do it...I read about acoustic not in audio sites, they dont explain what to do... The most useful information i read about was a research paper by three japanese acoustician about the use of reflection to create a better LEV/ASW ratio...They dont propose concrete way to use them in small audio room but it is not a mystery to figure it our with experiments... It was fun... Way more than throwing money on costly upgrades... it worked and i go on with that... i study how to create Helmholtz resonators after that with books and net images... Etc Acoustic passive materials treatment is the first thing to do for sure...it is very well known this part... Mechanical adjustable acoustic active control with resonators fine tuned is not well known but you can tame all small room easily with that...
My acoustic experiments are from the last 2 years mostly...
it is meaningless to post images of hundred of devices...Why? To be mocked ?
Any people with a brain are able to figure out Helmholtz method and devices... The materials used has no importance , only their mathematical RATIOS and location matter...
Anybody with a brain can use psycho-acoustic basic fact and use a foldable screen in conjugate relation with the 2 speakers (a) and (b) for the ear A and the ear B, in a timing way with some acoustic cross talk and some acoustic crossfeed to create an intimacy rivaling any headphone...
Anybody can experiment with Schuman generators...
Anybody can learn how to clean in a simple way the electrical noise floor...
Anybody can learn how to decrease resonance and vibrations at low cost...
this is what i experimented to, at peanuts cost, because esthetic was not my concern...
My advice is simple:
dont upgrade anything BEFORE control installed in mechanical and electrical and acoustical dimensions..
And anyway no room need the same treatment and no one has the same freedom and will and time to experiments...
My second advice: try simple experiments at no cost, listen and learn...
I let this virtual page for those who judge on appearance.... 😁 i
But i will not add cardboard rolls, straws , hundred of tubes, and plumber discarded tubes to be mocked by people who dont want to understand acoustic and pscyho-acoustic..
Simple...
my best to you...
Don’t lose your cold, I’m just bustin’ balls. (See I just did it again!) And you only BB people you like.
You post a lot about what people don’t understand about room acoustic that you’ve figured out. Plus how misguided others are to spend so much money when your successful methods are dirt cheap and more effective. Wouldn’t a few pictures help others get to where you are?