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  • Thought this was cool...

    https://www.youtube.com/watch?v=t3a6hMh6GzY

    I don't think he isolated the driver volumes, and he left the Fountek run wide open. Nothing stated on the woofer being filtered either. What I thought was neat was the tweeter ball. I saw him glue it up with the tweeter placed inside in reverse, and that got me thinking about maybe notching the rubber discs, and making them wavegide and slot-load the tweeter.

    Just some random thoughts about what went through my mind when I watched it...

    Later,
    Wolf
    "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
    "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
    "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
    "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

    *InDIYana event website*

    Photobucket pages:
    http://photobucket.com/Wolf-Speakers_and_more

    My blog/writeups/thoughts here at PE:
    http://techtalk.parts-express.com/blog.php?u=4102

  • #2
    Thanks Wolf.
    Yeah, that little Fountek will not be happy sharing volume with the TB woofer.
    Nice idea for the ball above the full range Fountek though.

    I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
    "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

    High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
    SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
    My Voxel min sub Yet-another-Voxel-build

    Tangband W6-sub

    Comment


    • #3
      Wow, those look like the same drivers I used for the micro speakers...! But my XO is not that simple!!!

      Comment


      • #4
        It's definitely a creative looking speaker. Sort of a shame to put that much work in, though, without much thought given to the crossover.
        Isn't it about time we started answering rhetorical questions?

        Paul Carmody's DIY Audio Projects
        Twitter: @undefinition1

        Comment


        • #5
          Originally posted by ani_101 View Post
          Wow, those look like the same drivers I used for the micro speakers...! But my XO is not that simple!!!
          You know- they really are the same drivers you used!
          Wolf
          "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
          "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
          "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
          "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

          *InDIYana event website*

          Photobucket pages:
          http://photobucket.com/Wolf-Speakers_and_more

          My blog/writeups/thoughts here at PE:
          http://techtalk.parts-express.com/blog.php?u=4102

          Comment


          • #6
            Just my opinion, but there is a serious flaw in the basic design as well. I know some commercial speakers use a sphere, but that sphere shape does not make a good diffuser of high frequencies. The reason being is that due to its shape, there is a considerable amount of energy reflect right back at the cone/dome, which is destructive to the frequency response. In my experience, a concave cone shape is the best way to go, because it doesn't reflect any high frequency energy back toward the cone/dome.

            It is a cool looking speaker, however.
            Dan N.

            Comment


            • #7
              Originally posted by donradick View Post
              Yeah, that little Fountek will not be happy sharing volume with the TB woofer.
              Looks like it's got a separate enclosure. You can see in the hole for the Fountek at 6:48

              Comment


              • #8
                Originally posted by Swerve City View Post
                Looks like it's got a separate enclosure. You can see in the hole for the Fountek at 6:48

                yeah, realized that after the post .

                I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                My Voxel min sub Yet-another-Voxel-build

                Tangband W6-sub

                Comment


                • #9
                  Originally posted by dlneubec View Post
                  Just my opinion, but there is a serious flaw in the basic design as well. I know some commercial speakers use a sphere, but that sphere shape does not make a good diffuser of high frequencies. The reason being is that due to its shape, there is a considerable amount of energy reflect right back at the cone/dome, which is destructive to the frequency response. In my experience, a concave cone shape is the best way to go, because it doesn't reflect any high frequency energy back toward the cone/dome.

                  It is a cool looking speaker, however.
                  I assume you are referring to the Planets from Duevel, of either iteration.

                  Okay- thought...
                  If you placed a felt pad the diameter of the tweeter or dustcap on the bottom of the ball, could you steer the response better? Then the absorption will do it's thing and allow the diffusion to happen as it should?

                  Later,
                  Wolf
                  "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
                  "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
                  "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
                  "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

                  *InDIYana event website*

                  Photobucket pages:
                  http://photobucket.com/Wolf-Speakers_and_more

                  My blog/writeups/thoughts here at PE:
                  http://techtalk.parts-express.com/blog.php?u=4102

                  Comment


                  • #10
                    What if you could incorporate an upside down cone to the bottom side of the tweeters sphere

                    Comment


                    • #11
                      This would be a neat build to mess with

                      Comment

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