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Acoustastuff vs. Fibreglass .....

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  • djg
    commented on 's reply
    Still available. Shipping from Canada might be a deal killer.

    https://www.atsacoustics.com/item--S...ool--1106.html

  • fpitas
    replied
    ATS Acoustics has it too:

    https://www.atsacoustics.com/cat--Fi...ards--106.html

    I used the recycled cotton sheets to fill my sealed subwoofer cabs.

    Leave a comment:


  • billfitzmaurice
    replied
    Originally posted by djg View Post
    Suspended ceiling fiberglass panels are a good source of rigid fiberglass.
    A source of thicker pieces is commercial construction sites.It's the preferred insulation material for commercial buildings, and you can usually get scraps they've tossed for free, plenty to fill a speaker or two. HVAC supply stores sell thicker sheets too, usually but not always aluminum foil faced.

    Leave a comment:


  • Regore
    replied
    I also use ceiling tiles to line the interior of the box. Easy to work with, affordable and minimal itching.

    Leave a comment:


  • djg
    replied
    Suspended ceiling fiberglass panels are a good source of rigid fiberglass. The white finished surface peels off easily, you don't have to buy a large qty. I've scrounged beat up open box panels at Menard's for cheap.

    Leave a comment:


  • billfitzmaurice
    replied
    Type 700 rigid board fiberglass is one of the best damping materials. For instance:

    Absorption Coefficient measured against solid wall

    Hz ________125_ 250_ 500_ 1000_ 2000_ 4000

    1” Type 700_ .17_ .33__ .64__ .83__ .90___ .92

    1” Foam___ .07_ .12__ .28___.60__ .93___ .83


    The fiberglass used for wall insulation should be avoided.

    Leave a comment:


  • hitsware2
    replied
    Yea .... The fibers are no problem .... Don't even make me itch ( Knock on wood )
    Acoustistuff does seem more available in practicle amounts .

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  • jhollander
    replied
    I like fiberglass for it's well documented adsorption characteristics. In sealed cabinets the small airborne fibers are not issue. I like acoustastuff in ported cabinets and part of layered stuffing.

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  • hitsware2
    replied
    I have the boxes and drivers .....
    I am using the classic 0.707 Qt
    ( since my driver / box combo is apropos )
    Want ideas for optimum stuffing material .

    Leave a comment:


  • rpb
    replied
    I like the sound of lower Q sealed speakers. It's simple to make the box larger, unless you just want smaller boxes. There are trade-offs, but I find the larger boxes have advantages. The f3 may be higher, but the deeper bass is stronger.

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  • hitsware2
    replied
    So for a sealed cabinet ......
    The end result ( Fc, Qt ) would be equal with either .
    I.E.... If stuffed until Qt ~ 0.7 then Fc would be the same with either ?

    Leave a comment:


  • Paul K.
    replied
    Fiberglass and Acouta Stuf do the same type of thing but require different densities to create the same result. In TL work Fiberglass density needs to be about 70% of that of Acousta Stuf for the same effects (per George Asperger's work years ago).
    Paul

    Leave a comment:


  • hitsware2
    started a topic Acoustastuff vs. Fibreglass .....

    Acoustastuff vs. Fibreglass .....

    For ~ 1/2 cu. ft. sealed ? Thoughts ?
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