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Modular Room-w/in-a Room HT? Think's a good idea?

Quite simply, what do YOU all think about the idea of a "Modular Room within a room system" for isolating dedicated AV/theater rooms/spaces within a home space/room as an concept?!?
Having personally done some custom dedicated sound isolated rooms and construction techniques applications on my own systems over the years , there's really been only those options, and then just sticking gear and treatments/fixtures in a room and call it a home theater, that most of us would ever consider(?). But while I've see some mostly industrial or pro audio type(?) products that pertain to modular room systems, for sound isolation (and or just isolated separate easy to assemble spaces within existing spaces/structures/warehouse/commercial space products,), I don't think there's anything directed specifically for the home theater market.

see bellow links for the concept that I'm refering to:

http://www.blackcatmusic.com/products/acoustic-products/modular-practice-rooms/wenger-sound-isolating-practice-rooms

http://www.bemcoinc.com/FLM.htm

What do you think? Great idea? Or would no one want this kind of product/concept to install in a room in their home for isolating their HT room (within a room)??!
Seems to me this would be a great and somewhat temporary, easily assemble-able/disassemble-able, yet high quality way to do an isolated sound room in your own home, that could also provide acoustically treated integrated walls, integrate other wiring, lighting, HVAC(?) and equipment?! I just think the idea has merit.
Think the masses of music/AV/HT consumers buy into this kind of product? I just think it would sell if it was marketed as such.

Comments?...Input?
avgoround
soix
2,133 posts
 
"Keep in mind I am aware that even simplly isolating w RESILLIENT won't help keep bass in or out very effectively! Only wall thickness depth and mixed with mass barier is only way there. SPRUNG walls only really help mid and high frequencies used with green glue or deadened drywall."

Ooh. That strikes me as exactly backwards. Resilient channels are helpful in absorbing low frequency bass waves and preventing them from being transmitted to the studs and then to the rest of the house with the added benefit of improving the bass characteristics within the room itself. Trying to do that with wall thickness would require walls way too thick to be practical. Obviously constructing a room within a room would go even further in improving isolation. On the flip side, wall thickness/damping can be very effective in preventing the transfer of mids/highs while also helping acoustically in that range within the room. If you haven't already, get Premium Home Theater by Earl Geddes. Haven't read it in a while but I think I got this right. By far the best book I've read on how to construct a dedicated room, and it applies just as much for audio as it does for home theater. Highly recommended for anyone looking to build/treat their listening room.
avgoround OP
287 posts
 
http://hometheaterrx.com/how-to-properly-soundproof-your-home-theater/

SOIX, not totally. As i started, BARE MINIMUM "somewhat more effective for base" (much better on mids n highs though) is mass loaded deadend drywall on fured out studs, decoupled with isolation clips, is what i should have done on this small room. Still its only modestly effective in effectively issolating super long bass waves that still vibrate within the small air cavity of single leaf wall stRucture. Read this article (and others) n u'll see that even the world renouned Anthony Grammani acknowledges that a separate quadrouple leaf separate wall structure separated completely from each other is most effective. also states that mass by itself is only minimal but helps with de coupling, yes.
As i said, its minimal acceptable n what i should of done.
ptss
1,649 posts
 
Hello Soix,
I think the Quietrock site may be of interest to you as well. (I have zero interest in the company,commenting for knowledge sharing only. No offense intended to those who don't wish to learn)
soix
2,133 posts
 
Thanks Ptss. I actually ran across that site a couple years ago when I was researching this so I'm familiar with the product. Looks like a good product, but I'm not sure what it gets you over just bonding two sheets of drywall together with Green Glue other than saving some time. Estimating it would be 2 to 4 times more expensive to use Quietrock, but might be worth it if it offers significant benefits and saves time on a project.
avgoround OP
287 posts
 
Simply email respected well known professional acoustical engineers (Anthony grammani, Russ Herschelmann, Richard Rives ,etc) who've been engineering n designing all level of custom theaters for couple of decades now, n and ask em " green glue sandwich drywall vs quietrock?"
Again, im betting no more or less than a decibel or so difference, all things considered. Can't be anything more than another drywall option better than standard at best. Kinda like rockwool vs fiberglass in a stud cavity.
Um...yup
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