Acousta-Stuf Polyfill 5 lb. Bag

Acousta-Stuf Polyfill Speaker Cabinet Damping Material 5 lb. Bag

Overview
Acousta-Stuf is a sound absorption, dampening fiber which will deepen bass, provide cleaner midrange and improve the dynamic extension of any speaker system. Acousta-Stuf will outperform Dacron, foam, and fiberglass.
Part # 
260-330
Weight: 5 lbs.  
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Product Details

Acousta-Stuf Polyfill Speaker Cabinet Damping Material 5 lb. Bag

Acoust-Stuf™ is a sound absorption, dampening fiber which will deepen bass, provide cleaner midrange and improve the dynamic extension of any speaker system. Acoust-Stuf will outperform Dacron, foam, and fiberglass. There are no health hazards with Acousta-Stuf and no mask or gloves are needed when using this product. Most sealed and vented enclosures require 1/2 lb. of dampening material per cubic foot of enclosure.



Acousta-Stuf Polyfill Speaker Cabinet Damping Material 5 lb. Bag
  • BrandParts Express
  • Part Number260-330
  • UPC844632037399
  • Product CategoryCabinet Damping Material
  • Unit of MeasureEA
  • Product Rating
    (27 Reviews)
  • Weight5 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Acousta-Stuf Polyfill Speaker Cabinet Damping Material 5 lb. Bag
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Reviews

Acousta-Stuf Polyfill Speaker Cabinet Damping Material 5 lb. Bag
Acousta-Stuf Polyfill Speaker Cabinet Damping Material 5 lb. Bag is rated 4.5556 out of 5 by 27.
Rated 4 out of 5 by from product worksI used Acousta Stuff in a set of Klipsch Heresy Is. After treating the speakers, they are much less boomy, and the response is flatter. I would recommend not over stuffing - stick to the recommended amount which is more than enough. Also, it;s not necessary to spray glue the poly material in place for a sealed cabinet.
Date published: 2014-07-08
Rated 5 out of 5 by from a little goes a long way to ear happinesshad an older pair of PA speakers (600 Watters) that I thought I blew the super tweeter. Opened up the unit to find a cold solder joint that was easy to repair, but since I ripped into this plastic housing, noticed it was a low cost construction and ordered four pounds of Acousta-Stuf to deaden the back-waves as well as glue up some of the larger components on the cross-over (a little labor of love goes a long way). WOW ! that speaker sounded so much better, that 15 inch mid-woofer was so much better sounding that I ordered another 4 pounds of Acousta-Stuf to fill up the other working unit, of course I also hot glued those larger caps on the cross-over as well. Now that music room sounds so much better during jam sessions.
Date published: 2014-05-07
Rated 5 out of 5 by from Damping DeliciousHandles well, easy to work with. Light yet heavy. Dense yet fluffy. Acoustically sublime. Goes especially well with a 2008 Domaine Louis Michel Chablis Fourchaume Vaulorent.
Date published: 2013-08-07
Rated 5 out of 5 by from Great productThis is great damping material. I had a set of speakers that were filled with fiberglass dampening from the factory. I replaced the fiberglass with Acusta Stuf and increased the bass output. This stuff works. I have stuffed all my speakers with this dampening material and they all now produce deeper bass. It is a bit expensive but the results are worth it.
Date published: 2013-04-21
Rated 5 out of 5 by from Buy It!This product just plain works as advertised. As a added bonus, it is easy to cut/tear & does not itch like crazy if gloves are not used.
Date published: 2010-01-09
Rated 4 out of 5 by from This brand's actually better than others I've usedI had some generic fabric store fiberfil laying around but I needed more fil for a project involving multiple speakers. This stuff works much better it took 3 to 4 times as much of the old stuff I had to get comparable results. What's interesting is that acusta stuf turned out to be excellent for minimizing the colored sound of my midrange and midbass frequencies. I've always used fil for undersized sub enclosures and this was the first time I used it for speakers, along with subs too. So I ordered 2 more 5lb bags and filled all my project speakers with the acustuf and used my old fil for my subs since enough of the old fil works well for tricking undersized enclosures.As far as how much to use, enclosures under 2 cubic ft have alot of play in stuffing densities and noticeable results whereas enclosure over 3 cubic ft need to be closer to manufacture recommendation and will have less noticeable results still(I did a little testing). Also, a 5lb. bag of acusta stuf was smaller than 5 pounds of the old fil I had already which shocked me but I noticed it was more dense and tougher maybe that could explain the better performance. I have not compared this to fiberglass or wool which I hear works great minus some allergy effects but at this moment acusta is my go to polyfil brand
Date published: 2009-11-30

Product Q&A

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Acousta-Stuf Polyfill Speaker Cabinet Damping Material 5 lb. Bag

What is the volume of bag?

Asked by: sosokruashvili
A 5lb bag of polyfill can accommodate up to a 10 cubic foot enclosure. Recommended use is 1/2 lb. per 1 cu ft.
Answered by: TomI
Date published: 2014-10-09

Would using acoustic foam be better if it has a better absorption capabilities than Polyfill?  Is there any RAL measurements on Polyfill that I can compare to acoustic foams on the market to compare effectiveness?

Asked by: BobSm
Acoustic foam is excellent for damping the walls of a vented enclosure, whereas Acousta Stuf or polyfill is used in sealed enclosures for changing box Q and absorbing midrange back wave.
Answered by: MattP
Date published: 2014-03-07

Making enclosures seem larger formula

Is there a formula for how much Polyfil results in an effective increase in enclosure size? I have a sub that wants 1 cubic foot. Can I make it work in an enclosure of .7 using enough polyfil?
Asked by: dB Cooper
I'm certain that you could calculate that if you had info on all of the known variables. The problem is that you would have to know exactly where each strand of polyfill is in the cabinet to know how it would physically interact with the sound waves being sent into the enclosure by the driver.The layman's way is to simply add 10% to the enclosure size for a sealed enclosure loosely stuffed with polyfill. Also note that you can overstuff for negative effects, and I personally don't like to use polyfill for ported designs. For those I like to line the walls with egg crate foam or better quality foams (I have heard carpet padding works as well).So aside from a very complicated calculation that would require computer assistance, just add 10% to your enclosure size and don't overstuff.
Answered by: Honest Rob
Date published: 2012-05-30

Wanted to buy this to re-stuff my polk Monitor 60`s & CS10 center speaker,will it sound better?

Asked by: muska27
If you use the same amount of fill for each speaker, I don't think it will produce a significantly different sound. However, individual tastes and opinions of what is the "right" amount of stuffing for a particular speaker can vary greatly. Using more or less stuffing can change the sound, whether it would sound "better" to you one way or the other would be a question that only you can answer.
Answered by: RussR
Date published: 2011-09-06

How big is a 5 pound bag?

Asked by: Moon
Physically, the five-pound bag I looked at is approximately two feet in diameter, and an average of about 10" to 12" deep.
Answered by: RussR
Date published: 2011-06-28

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