Anyone have experience with acousticfields.com or with using true pressure traps?

I am also about to build a dedicated 2 channel listening room, about 31 x 23 x 14. I am wary of  building a lot of treatments into the actual structure that I cannot reverse. So, instead, I am planning to use the ASC ISO wall construction methods and then add treatments inside the finished space as needed based upon listening and measurements. Consulting with ASC.  I also have many Stillpoints Apertures, which I will try to incorporate if possible and appropriate. Best of luck!

I participated in a call with Dennis @acousticfields.com this afternoon. He was friendly and helpful and came across to me as one who knows what he is talking about. The bottom line is that he offered his room design services for a substantial fee (which is completely credited toward a subsequent purchase of goods) and suggested that I go the DIY route, buying only the carbon and foam from him, due to my limited budget. It appears it will take a lot of carbon to build the complement of pressure traps (around 70!) needed to completely treat a room this size (17’X23’X10.5’).

Two things look to be a problem: 1) he said he is backlogged 2-3 months for design services and 2) the cost. I could possibly swing (at the high side of my budget) the number he quoted if the pressure traps were turnkey, but adding labor (and the cost of wood) for my carpenter to build 70 of the pressure traps would make the cost way beyond my means.

@arsh I briefly reviewed the description of the ASC ISO system on their website and it appears that it primarily intended for soundproofing. That is not a concern for me since the new room will be the only room in the basement and the exterior walls are cinder block and mostly underground. I am 100% focused on optimizing the sound quality inside the room itself. Did I misunderstand the ASC ISO system’s benefits? BTW I really like the concept of the Stillpoint Aperatures and hope to work four into my room budget.

@4krowme I recall there was a product from Billy Bags some time ago that used a microphone and an amplified bass speaker wired out of phase that was hung in a corner from the ceiling to cancel room bass nodes. I thought it was interesting but it was long discontinued by the time I discovered it. Would that be what you are remembering?

Dlcockrum, here you go...

"The Iso-Wall construction technique solves the three main problems with listening rooms: 1) it greatly reduces wall shudder; 2) prevents sound inside the listening room from getting out; and 3) absorbs excess bass energy by virtue of the flexible walls, turning them into giant membrane bass traps."

 Like you said it was a long time ago, but yes that sounds like the product that I remember.

 Wouldn't we all be better off with headphones? Ha! There are problems with making music any way that you have it. Still looking forward to your future experience with all this.

 The iso-wall is a technique that will get you most of the way there, but no doubt it would require some engineering advice. One thing that I like about it is that it is automatically out of the way from the beginning.

Usually the most optimal solutions are mostly passive control, with some active control layered on top.

  It does remind me of a product though that didn't go far for room correction. Must have been a financial thing because it made sense to me. I remember some company that used correction in the form of an anti-bass wave being used to cancel out the nodes in the room. Basically a sample was taken during every moment of the music and a microphone and amplifier/speaker combination produced the anti-wave. Seems this system was placed in the corner of a room. Didn't hear much more about it after its inception. 

And using that active control, following the passive bass traps.