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Old 3rd August 2011, 03:50 PM   #1
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Default Green Glue

Maybe this isn't the proper forum, but I was wondering if the use of Green Glue in the walls of a listening room would improve the clarity of bass by damping out the wall resonances? The company recommends two layers of drywall bonded with their product to reduce noise transmission, but it also heavily dampens wall resonances as well, so wouldn't this improve the clarity of bass in a room because of the lack of resonating walls?
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Old 3rd August 2011, 03:57 PM   #2
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Yes but be careful of the manufacturers claims. It won't be the end all nor even close.
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Old 3rd August 2011, 05:23 PM   #3
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Quote:
Originally Posted by Cal Weldon View Post
Yes but be careful of the manufacturers claims. It won't be the end all nor even close.
Yeah, but it has to be better than just plain drywall nailed to studs, doesn't it? Almost everything I read about this stuff was for noise transmission through walls but I couldn't find anything about how it changed the sound inside the room. I had to deduce that myself, or at least make an assumption and ask questions.

Last edited by dirkwright; 3rd August 2011 at 05:29 PM.
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Old 3rd August 2011, 05:49 PM   #4
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Oh yes much better. It will act somewhat as a bass trap so if it's easy and you aren't having to do much more then go for it. If you need to keep the sound in the room and you are building anew, consider starting with a party wall (offset and staggered studs) and using two layers of drywall on each side with green glue.
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Old 3rd August 2011, 05:59 PM   #5
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Ted White of Green Glue often posts on many of the audio and home theater sub-forums that deal with room construction and acoustics. His web-site has many, many pages on room construction and real test lab results. Ted White is not the type of person to make idle clams.

Remember that while Green Glue is green, it's not glue!
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Old 3rd August 2011, 06:27 PM   #6
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Quote:
Originally Posted by Speedskater View Post
Ted White of Green Glue often posts on many of the audio and home theater sub-forums that deal with room construction and acoustics. His web-site has many, many pages on room construction and real test lab results. Ted White is not the type of person to make idle clams.

Remember that while Green Glue is green, it's not glue!
Do you have the link to his website?

It's not glue? How do you use it in speaker cabinet building then? I was considering using it to put a decorative plywood over a MDF speaker box, but if it's not glue then I need some other way to secure the ply to the MDF. Help!
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Old 3rd August 2011, 06:37 PM   #7
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It may be good for contrained layer damping, but not as a glue, per se. It stays somewhat flexible. Panels need to be heavily screwed together. How do you do that with "decorative" plywood? It's probably not thick enough to screw from the inside out. And screws would ruin the decoration of the plywood if screwed from the outside. Would be better to glue and screw a second panel on the outside, then veneer it. Liquid nails subfloor adhesive may be just as good, if not better--and a lot cheaper.
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Old 3rd August 2011, 06:42 PM   #8
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Try:

About Green Glue

It's no better glue than peanut butter!

For the most part the website is about walls and ceiling, nothing on speaker cabinets.
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Old 3rd August 2011, 06:48 PM   #9
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Originally Posted by Speedskater View Post
Try:

About Green Glue

It's no better glue than peanut butter!

For the most part the website is about walls and ceiling, nothing on speaker cabinets.
Thanks. been around the website already. No info on my question, but it's been answered here already.
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Old 3rd August 2011, 07:29 PM   #10
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You might look at this thread:

Geddes Bandpass Subs and the Multi-sub approach

Starting at about post # 35.
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