Building an audio room .......and also a house, almost DIY way

GallantListener

Well-Known Member
Oct 23, 2019
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Dallas Texas
At the request of many friends, I am starting this thread.

***Disclaimer: The main goal of the thread is to share the experience and joy of the hobby with others. No bragging is intended. I worked under limited budget and was not able to do many things in trying to economize. At the end it is a humble ending but totally enjoyable. ***

More than three years ago I decided I needed a new house and that would be a custom designed house in the Dallas Fort Worth area. There were many reasons for the change, the main and underlying reason being the desire for a new audio room. My audio room then was -- as has been shown on many forums -- on the third floor. As a room, it was also almost custom designed (double Sheetrock, double floor sheets, bricks on front and rear walls, wiring, dedicated power lines, etc.).The room dimensions were 26 x 16 x 11 slanting to 9 feet. Not a bad room, in fact a damn good one. However, the weight of the equipment (1400 hundred pounds of 6-chassis TRL amps and 650 pounds just for the pair of Apogee FR speakers), it was a constant bother for me, although the house did not show any sign of damage due to the weight.

However, I also wanted a nice house that would meet all other requirements, of course under the budgetary constraints. I started thinking of the design and looked at many many model houses, always keeping in my how the media room as the main requirement would integrate into it. I started on conceiving the design but without consulting an architect -- I am not a "paid" consulting guy except asking for the opinion of trusted friends. I like DIY as much as I can.

So I purchased a lot, IMG_6063.JPG 1.1.jpg made an initial drawing of the house, and then asked people's opinions, while refining the design for nearly a year. Then I needed a builder and I found out that it was a very tricky business. I "worked" with 5 builders without actually starting the construction and signing a contract, before finding one to my liking. I wanted one who would be honest, experienced, available for his time, and would not rip me off. Most importantly, I wanted a builder who would work with me at a very detailed level not just on the audio/media room but the entire house. Picking the final builder took more than a year.

I made all of the detailed drawings of the house myself, including every tiny detail that my untrained brain could tell. This included everything, including bathrooms, windows, doors, wall thickness, fire place, front, back, sides, roof, closets. Finally hired an architect to verify everything, ensure all of the city code requirements, and create the blueprints. She suggested a few minor adjustments and the design was approved. The construction started in May 2018. Will post pictures here of step by step.
 
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GallantListener

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Oct 23, 2019
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Dallas Texas
There are several audio friends who provide a lot of feedback but in particular I owe a plenty of thanks to two friends: Mike Levine and David Royalty (he is not active on this forum). Thank you guys for useful suggestions.
 
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han_n

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Sep 5, 2019
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Surabaya, Indonesia.
Great info, I have always been interested in this, and even though I can't build as I would like, I did (and still) spend quite a bit of time on reading about room acoustics, speaker placement and listening position, all being interrelated, making it rather complex. It's interesting that when you read all the "specialists' opinions" you will find how often they contradict each other.
I moved house 1,5 year ago, previously had an "impossible" music room, which in turn sounded "impossibly" good, for reasons not understood by myself nor others who came over to listen. My current room fails to -fully- deliver, for reasons I think I understand, however I'm unable to make corrections, due to practicality. I'm very happy with mid/high, but know from my previous experience that LF stays way behind from what is possible. Never mind, the fact that I stay busy (in a relaxed way) with it, do the thinking, reading, looking at what others did (like your design) is part of this hobby. You always try to connect the dots, and once there are enough dots, the picture becomes clear. Again, appreciate your information, I will have a second look, as you may just have provided another dot to make the picture.
 
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GallantListener

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Oct 23, 2019
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Dallas Texas
The final was design (from outer to inner layer): Stucco, metal screen, moisture blocker, 2x4, insulation, soft sound board, air gap cinderblock, MDF.
 

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Ron Resnick

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The final was design (from outer to inner layer): Stucco, metal screen, moisture blocker, 2x4, insulation, soft sound board, air gap cinderblock, MDF.

Excellent! These wall structures can be very complicated. (Ask me how I know. :D)

So from the inside the sound waves are “seeing” soft soundboard and then air gap and then cinder block? That seems good to me.
 

gian60

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Apr 17, 2016
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I am now in China for a meeting with my supplier linen yarn company and I found very beautiful meeting room
I think it sound very well
 

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GallantListener

Well-Known Member
Oct 23, 2019
34
46
85
Dallas Texas
Excellent! These wall structures can be very complicated. (Ask me how I know. :D)

So from the inside the sound waves are “seeing” soft soundboard and then air gap and then cinder block? That seems good to me.

No, the other way around.

I listed he layers starting form from outer to inner layer! So the MDF is the inner most layer, which is nailed and glues to the cinderblock, then air gap, then soft board. However, there will be diffusers too attached to the MDF walls.
 

GallantListener

Well-Known Member
Oct 23, 2019
34
46
85
Dallas Texas
But Ron, tell me more what you know, although I must say the room is finished despite that I am posting the pictures of the step-by-step process that took several months. The only person I consulted from this forum was Mike Levine.
I must say making this room posed more factors than picking a speaker or amp :)
 

Ron Resnick

Site Co-Owner, Administrator
Jan 24, 2015
16,222
13,686
2,665
Beverly Hills, CA
No, the other way around.

I listed he layers starting form from outer to inner layer! So the MDF is the inner most layer, which is nailed and glues to the cinderblock, then air gap, then soft board. However, there will be diffusers too attached to the MDF walls.

Interesting. What is the acoustic objective of the air gap on the far side of the cinderblock? (Or is that just a construction element?)
 

Ron Resnick

Site Co-Owner, Administrator
Jan 24, 2015
16,222
13,686
2,665
Beverly Hills, CA
But Ron, tell me more what you know, although I must say the room is finished despite that I am posting the pictures of the step-by-step process that took several months. The only person I consulted from this forum was Mike Levine.
I must say making this room posed more factors than picking a speaker or amp :)

I was just referring to the complicated, year-long research and decision process by which I arrived at the interior wall structure for a revamped listening room.

I consulted Mike as well. He is a very good person to consult!
 
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GallantListener

Well-Known Member
Oct 23, 2019
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46
85
Dallas Texas
Interesting. What is the acoustic objective of the air gap on the far side of the cinderblock? (Or is that just a construction element?)
The gap is purely for the acoustic objective of isolating layers to attain sound proofing, to prevent leaking and to contain the sound within the room, especially the bass. It is analogous to a thermos bottle, and is perhaps the cheapest way (material wise) to prevent the sound from travelling between layers. In another analogy, the room is like a (multi-layer) balloon full of air when filled with bass, and unless sealed, it will continue to leak air. Gaping is a highly effective in preventing that. My goal in construction was to first prevent the leakage of the sound energy. After that is achieved, then what do you do with the so much energy left is another matter.
 

GallantListener

Well-Known Member
Oct 23, 2019
34
46
85
Dallas Texas
I was just referring to the complicated, year-long research and decision process by which I arrived at the interior wall structure for a revamped listening room.

I consulted Mike as well. He is a very good person to consult!

Although it is too late for me (but luckily I am totally pleased with the outcome), I am curious about your wall structure because I must say I have not looked at this forum (or another other) for years.
 

Aussienut

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Jun 22, 2017
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Brisbane, Australia
Well done. Excellent story and great looking result. Thanks for sharing.
 
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