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Dayton Classic Revival and polyfill

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  • Dayton Classic Revival and polyfill

    Does anyone know if I need to put at least polyfill or damping foam in the cabinets?
    Statement Monitors

    Duratex is your friend

  • #2
    Re: Dayton Classic Revival and polyfill

    Generally, foam line ported designs, stuff sealed designs, with the exception of mass loaded transmission lines (MLTL). Those are a ported box with specific stuffing as part of the design. Mattress topper convoluted foam is a budget method. It needs to be open cell foam that you can breath through.

    This is Paul's Amiga, which is the same enclosure. He uses foam and stuffing in the bottom.

    https://sites.google.com/site/undefinition/diy/amiga

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    • #3
      Re: Dayton Classic Revival and polyfill

      Originally posted by djg View Post
      Generally, foam line ported designs, stuff sealed designs, with the exception of mass loaded transmission lines (MLTL). Those are a ported box with specific stuffing as part of the design. Mattress topper convoluted foam is a budget method. It needs to be open cell foam that you can breath through.

      This is Paul's Amiga, which is the same enclosure. He uses foam and stuffing in the bottom.

      https://sites.google.com/site/undefinition/diy/amiga
      SO... I should go with foam then?
      Statement Monitors

      Duratex is your friend

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      • #4
        Re: Dayton Classic Revival and polyfill

        yep foam. Mattress topper from Walmart works well.
        https://www.facebook.com/Mosaic-Audi...7373763888294/

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        • #5
          Re: Dayton Classic Revival and polyfill

          Actually the TRS-80 on Pauls site has a picture of the cabinet interior.......... https://sites.google.com/site/undefinition/diy-trs-80

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          • #6
            Re: Dayton Classic Revival and polyfill

            You can always add or remove foam or stuffing to suit to taste (a removable front or rear baffle makes this easy). You can experiment with it and see if you hear any differences.
            Mike
            "We're speaker geeks, not speaker nerds. Nerds make money!" Marty H
            Bismarck, North Dakota
            My Current System: Jolida SJ502A, Squeezebox Touch, and Carmody Sunflowers
            My Garage System:Marantz 2238B and Nano-Neos

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            • #7
              Re: Dayton Classic Revival and polyfill

              Originally posted by upsman View Post
              Actually the TRS-80 on Pauls site has a picture of the cabinet interior.......... https://sites.google.com/site/undefinition/diy-trs-80
              Good catch. I forgot about that. That's pretty much it, except the shelf is not there in the Revivals, so the bottom portion just has a loose fill of polyfil. The foam lining the walls is eggcrate mattress topper from Wal Mart.
              Isn't it about time we started answering rhetorical questions?

              Paul Carmody's DIY Audio Projects
              Twitter: @undefinition1

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