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"MoZi" A Sealed 2 way design

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  • "MoZi" A Sealed 2 way design

    I am working with Pete on a sealed two way using a rear mounted AST2560 and the Satori MW16P. The baffle was CNC cut and once Pete confirms that it will work well for the AST2560, then I will upload dxf and 3D printing file for others to use. I am excited for this pairing. I prefer sealed compact enclosures that can almost disappear behind the sound stage. Pete is working on the XO now and looking forward to his feedback on how they sound.

  • #2
    Looks nice and should sound great
    craigk

    " Voicing is often the term used for band aids to cover for initial design/planning errors " - Pallas

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    • #3
      Great combo!
      _____________________________
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      • #4
        Should be able to get some testing done this weekend. Still trying to come up with a method of mounting the tweeters that combines a small chamber to isolate the back of the tweeter from the enclosure pressure. Got some ideas . . .
        R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio

        Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51


        95% of Climate Models Agree: The Observations Must be Wrong
        "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

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        • #5
          Originally posted by Pete Schumacher ® View Post
          Should be able to get some testing done this weekend. Still trying to come up with a method of mounting the tweeters that combines a small chamber to isolate the back of the tweeter from the enclosure pressure. Got some ideas . . .
          Pete,

          I saw someone else (can't find the thread now) that did a rear mount with a waveguide in natural wood and have the mounting holes go through the front of the guide. I think that was what you were trying to explain about an easy way to mount it. I wonder if you you drilled a small pilot hole all the way through from the rear and then did a countersink from the front if that would work.

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          • #6
            Why put holes through a nice baffle? Surly you can use some sort of rear mounting scheme
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            • #7
              Yeah, that’s exactly what I had in mind. But it needs to incorporate a sealed chamber since the back of the tweeter is just a piece of felt.
              R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio

              Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51


              95% of Climate Models Agree: The Observations Must be Wrong
              "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

              Comment


              • #8
                Originally posted by Ironman129 View Post
                I am working with Pete on a sealed two way using a rear mounted AST2560 and the Satori MW16P. The baffle was CNC cut and once Pete confirms that it will work well for the AST2560, then I will upload dxf and 3D printing file for others to use. I am excited for this pairing. I prefer sealed compact enclosures that can almost disappear behind the sound stage. Pete is working on the XO now and looking forward to his feedback on how they sound.
                I had just been wondering about this driver pairing. I look forward to reading about your results! Looks pretty great so far! Sent from my XT1710-02 using Tapatalk

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                • #9
                  CNC sure makes things EASY and faster turn around.. This hand sh!t is sure getting old ..ARE YOU USING THE 8 ohm Satori or 4 ? Really love the wave guide look with ribbons

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                  • #10
                    Originally posted by cap View Post
                    CNC sure makes things EASY and faster turn around.. This hand sh!t is sure getting old ..ARE YOU USING THE 8 ohm Satori or 4 ? Really love the wave guide look with ribbons
                    I've got two 4 Ohm and two 8 Ohm Satoris on hand. The 4s will go be wired in series for the center channel.
                    R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio

                    Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51


                    95% of Climate Models Agree: The Observations Must be Wrong
                    "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

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                    • #11
                      OK , Series makes sense.. I have 4 now in a two way that's being worked on and its already a sensitive driver .. The 8 is what most use as its easier to work with but not sure it sounds the same ! I will be more informed on the 4 real soon. Tweeter I am using is great BUT LONG DISCONTINUED..

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                      • #12
                        Pete,

                        Don't know if this would help or not. I am not very good at freehand with a router, but you could use this to press fit the tweeter to the back of the baffle and put a chamber on back. 5"w x 6.25" tall. I think they could even be bolted on from the front without going through the waveguide.

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                        • #13
                          I built a little box that comes an inch or so above the back of the tweeter. I'll put some stuffing in that chamber too. Remember, that felt backing will not keep the woofer pressure away from the AMT, so the back of the AMT needs to be in an enclosure.

                          I'll clamp the little box to the back of the baffle similar to what 6thplanet shows above.

                          I like your solution too. It just needs a little box over the back of the tweeter to complete it. And only a couple inches deep will be fine.
                          R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio

                          Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51


                          95% of Climate Models Agree: The Observations Must be Wrong
                          "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

                          Comment


                          • #14
                            Originally posted by Pete Schumacher ® View Post
                            I built a little box that comes an inch or so above the back of the tweeter. I'll put some stuffing in that chamber too. Remember, that felt backing will not keep the woofer pressure away from the AMT, so the back of the AMT needs to be in an enclosure.

                            I'll clamp the little box to the back of the baffle similar to what 6thplanet shows above.

                            I like your solution too. It just needs a little box over the back of the tweeter to complete it. And only a couple inches deep will be fine.
                            ​Pete, does the size of the back chamber have any effect good or bad. I know you are supposed to fill the chamber with something but I did not know if the size
                            of the chamber mattered.

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                            • #15
                              Originally posted by Squidspeak View Post

                              ​Pete, does the size of the back chamber have any effect good or bad. I know you are supposed to fill the chamber with something but I did not know if the size
                              of the chamber mattered.
                              With a tweeter and the very short wavelengths involved, I doubt you'd need much more than an inch or two behind the diaphragm as long as its well damped. Look at dome tweeters and their rear chambers for example.
                              R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio

                              Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51


                              95% of Climate Models Agree: The Observations Must be Wrong
                              "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

                              Comment

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