About to invest in room treatments; GIK, RealTraps, DIY -- what is your experience?

My Helmholtz-Fibonacci resonators are not ordinary Helmholtz resonators... I use many ordinary one i created myself but this one is more powerful....

The most important factor is the ratio 1.618...between pipes



The series of proportionate lenght between this "silent organ" like set of pipes cleaned most frequencies ....It takes me one hour to make them with some 3 bricks in my basement and unused copper regular plumber pipes of 1 centimeter1/2 diameter....

They act marvellously at one condition: the ratio must be respected to not impair the balance between interacting frequencies...

Only one or 2 inches, too much or too less, on only one pipe, will produce a not well balance sound very audible...Approximate measure around 1 centimeter will do no audible harm tough ...

My idea come from the best Book ever about the mathematics of the golden ratio....Then i coupled the ratio idea with Helmholtz idea....The golden ratio, like pi or the number e pilot the universe at all scale....

https://www.amazon.com/Mathematics-Harmony-Contemporary-Computer-Everything/dp/981277582X

By the way the key to Greek acoustic and Egyptian acoustic is this ratio...I read a book about that 45 years ago....I remember the price of the book : 125 dollars in 1977.... A very great book i never regret it....In french or in english it is sold today at the same price than 45 years ago, a real bargain today in relation to inflation....😁 It was an analysis of the Karnak temple in 2 volumes in Egypt by Schwaller de Lubicz..." The temple of Man"...

https://www.amazon.com/s?k=schwaller+de+lubicz&i=stripbooks-intl-ship&ref=nb_sb_noss_2

But these 2 books are 1000 pages each almost and not easy reading.... 😁



«Did you know that branches dance around the trunk in a spiral which is the golden number? For sure my wife also dance always like this around men»-Groucho Marx

One thought as well, before investing anything, spend $100 on a measurement microphone and learn how to use REW or something similar.  We are not talking cables here where the difference if at all is debatable. Acoustics can provide measurable improvements and a good place to start is knowing where you are starting from.

I have ASC, GIK, Michael Greene, and acoustic field products in my room. I have anywhere from sub-bass absorbers to diffusers. Both GIK and acoustic field offer diy products and videos to build your pieces. I bought the 8 dvd set from acoustic fields to build pieces. Any of the above mentioned companies will work with you on what you need to treat your room. Also, I think argent is no longer in business. 

Check out Acoustic Sciences Corp ..  https://www.acousticsciences.com/   Their stuff has been an integral part of my system since 1993.  https://www.martindareff.com/Other/HDR-Treated-Images/i-ZmLg23s/A

With regard to diffusion vs absorption with GIK panels, it costs only a little more to hedge your bets. I was initially skeptical about diffusion, since I was trying to tame a very bright room. I ordered Alpha panels with the optional cloth finished back so that they can be used for diffusion + some absorption or pure absorption, depending on which side faces into the room. I found that, in my room, the diffusion was noticeably better.

I have a total of nine GIK panels (3 Alphas, 3 non-membrane bass traps, 3 membrane bass traps) and haven’t encountered any QA issues, other than the little adhesive backed GIK labels eventually falling off the cloth covered panels.

I initially sent room measurements taken with a calibrated USB microphone and REW to GIK for recommendations to start off the process.

As expected, the improved reverberation time makes the room act as if it is much larger. Speakers (Sony ES SS-M7) generally considered to need lots of space to work well never sounded better...