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Bagby Kairos build - need feedback

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  • Bagby Kairos build - need feedback

    Hi all! First post.

    Planning to build Kairos for a while, I just made some 3D renders to plan out the build. Doing the 2-way for now, and will eventually build the woofer cabinets. I wanted to know your thoughts about the structure, and if this is enough bracing - I plan to add Kilmat-like sound deadening material to the inside (like https://www.amazon.com/Noico-deadening-Automotive-Insulation-dampening/dp/B01KZ5X7KO/), the build will be 0.75" MDF, CNC cut, with veneer finish. Any thoughts welcome!

    More images here: https://imgur.com/a/NZSwb74 (and will keep adding images there)
    Reddit x-post: https://www.reddit.com/r/diyaudio/co...uild_feedback/
    Last edited by groker; 02-14-2020, 06:54 PM.

  • #2
    Personally, I would add braces or a brace connecting the top ad and bottom panels as well
    https://www.facebook.com/Mosaic-Audi...7373763888294/

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    • #3
      The sound material you linked is for sticking to automobile sheet metal. I wouldn't use it in a wood or mdf speaker box. It's for damping vibrations in thin sheet metal.

      The kit has a box plan, the kit has a long writeup, I would follow that.

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      • groker
        groker commented
        Editing a comment
        Ah, I see. If the purpose is to just deaden the box, what is the difference? Just curious

    • #4
      Thank you, @iseagle4031!

      How about this? (all bracing in oak, just for visual rendering)
      Attached Files

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      • #5
        Originally posted by groker View Post
        Thank you, @iseagle4031!

        How about this? (all bracing in oak, just for visual rendering)
        perfect!
        https://www.facebook.com/Mosaic-Audi...7373763888294/

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        • #6
          Originally posted by djg View Post
          The sound material you linked is for sticking to automobile sheet metal. I wouldn't use it in a wood or mdf speaker box. It's for damping vibrations in thin sheet metal.
          Butyl rubber is a good sound dampener and quite a bit cheaper than Sorbothane. If you search Noico in the forum you will see that DaveFred and KEtheridge87 have used it and I believe Keith mentioned he found out about it via Javad S. I used a different brand in my speaker build.

          I think you don't see it used that much because (i) its not particularly cheap (although not prohibitively expensive either); and (ii) there isn't much (any?) A/B testing to show that it audibly makes a difference. I used it because I thought it might make a positive difference and was unlikely to harm the sound quality.

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          • #7
            Fiberglass, rock wool, denim insulation and porous foam are often used to line ported cabs. Sealed cabs are generally stuffed. Polyester pillow stuffing, or the way more expensive acousta stuf.

            Cabinet Damping Material | Speaker Components - Parts Express

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            • #8
              I'm planning to build a sealed two-way and port the woofer cabinet, so I guess I'll denim line both boxes and stuff the two-way with pillow filling.

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