Sound absorbing liner material
- Thread starter othello
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ejfud
Audio Pinhead
The people at the Bozak board have found a product that they claim works great in Bozaks. Don't know why it wouldn't work for any speaker project.
www.acousticalsurfaces.com
R-13 Ultra Touch Natural Cotton Fiber Insulation (Thickness 4”) UT13516X94. Its under wall insulations.
Gary
www.acousticalsurfaces.com
R-13 Ultra Touch Natural Cotton Fiber Insulation (Thickness 4”) UT13516X94. Its under wall insulations.
Gary
Paul C
Super Member
There are a number of sounding absorbing materials used inside speakers, each with pros and cons:
"Long Fiber Wool" - This was considered to be the best, but had to be treated with mothproofer to keep insects out. Considered to be the best sound absorber. I wouldn't know where to buy this stuff these days.
Fiberglass batting - this is probably what your plans call for. It is fiberglass insulation in "bats", sort of stiff, usally yellow. You can also use pink fiberglass insulation (tear the paper off). Fiberglass is terrible to handle. It gets in your clothes, into your skin, itches, you need to wear a dust mask or respirator to keep it out of your lungs. And still, it will be all over your shop area. Though nearly as effective as long fiber wool, I will not use it. I don't recommend it to you, either, regardless of the plans or effectiveness of fiberglass.
Dacron Poly Fiberfill - This white cottony material is my preferred material for this purpose. Easily purchased in bags of loose stuff to be put inside pillows, stuffed toys, etc, or in "batting", which is in sheets about 1" thick. This material is easy and safe to work with, and gives good results.
Waffle foam. You have seen this in the bedding department, foam cut in a waffle looking pattern, bumps all over. This works quite well. I use this or Dacron Poly Fiberfill, simply stapling it onto the back or sides of the speaker box.
www.acousticalsurfaces.com
R-13 Ultra Touch Natural Cotton Fiber Insulation (Thickness 4”) UT13516X94. Its under wall insulations
Gary, that looks great, and I'd certainly like to give it a try. I wonder where to buy it?
"Long Fiber Wool" - This was considered to be the best, but had to be treated with mothproofer to keep insects out. Considered to be the best sound absorber. I wouldn't know where to buy this stuff these days.
Fiberglass batting - this is probably what your plans call for. It is fiberglass insulation in "bats", sort of stiff, usally yellow. You can also use pink fiberglass insulation (tear the paper off). Fiberglass is terrible to handle. It gets in your clothes, into your skin, itches, you need to wear a dust mask or respirator to keep it out of your lungs. And still, it will be all over your shop area. Though nearly as effective as long fiber wool, I will not use it. I don't recommend it to you, either, regardless of the plans or effectiveness of fiberglass.
Dacron Poly Fiberfill - This white cottony material is my preferred material for this purpose. Easily purchased in bags of loose stuff to be put inside pillows, stuffed toys, etc, or in "batting", which is in sheets about 1" thick. This material is easy and safe to work with, and gives good results.
Waffle foam. You have seen this in the bedding department, foam cut in a waffle looking pattern, bumps all over. This works quite well. I use this or Dacron Poly Fiberfill, simply stapling it onto the back or sides of the speaker box.
www.acousticalsurfaces.com
R-13 Ultra Touch Natural Cotton Fiber Insulation (Thickness 4”) UT13516X94. Its under wall insulations
Gary, that looks great, and I'd certainly like to give it a try. I wonder where to buy it?
3-LockBox
Stellar
I like black felt carpet padding (not to be confused with foam padding). Its grey on one side, and black on the other and can be purchased at most hardware stores. It just happens I had some left over from re-carpeting the basement floor in my house. You can buy egg crate foam from Parts Express, but I think the felt padding is gooder.
"Long Fiber Wool" by Paul C this was also known as dr . Baileys longhair and is natural wool (sheep ) hence the need for insect repellent.Visaton sold wool for cabinet damping in europe .
I agree with Paul regarding fiberglass/glasswool and ad rockwool to this list the only type of speaker you could use it would be a closed system ,any opening and you would be breathing the stuff.
They describe it as a soft board type material and give it a producers name and address , but in Germany! by othello . In this case I would try carpet liner/felt
I agree with Paul regarding fiberglass/glasswool and ad rockwool to this list the only type of speaker you could use it would be a closed system ,any opening and you would be breathing the stuff.
They describe it as a soft board type material and give it a producers name and address , but in Germany! by othello . In this case I would try carpet liner/felt