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MiniByzy (Mini Byzantium) Build Thread

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  • #46
    Re: MiniByzy (Mini Byzantium) Build Thread

    These are beautiful, please keep the pics coming.

    TomZ
    Zarbo Audio Projects Youtube Channel: https://www.youtube.com/channel/UCEZ...aFQSTl6NdOwgxQ * 320-641 Amp Review Youtube: https://youtu.be/ugjfcI5p6m0 *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
    *Part 2 *Gluing multiple curved laminations of HDF

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    • #47
      Re: MiniByzy (Mini Byzantium) Build Thread

      Originally posted by tomzarbo View Post
      These are beautiful, please keep the pics coming.

      TomZ
      Sadly, this will be the last for a while, as Ed and family go on a vacation. Sad for us, not him!!! ;)

      This is ready for an epoxy skim coat.

      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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      • #48
        Re: MiniByzy (Mini Byzantium) Build Thread

        Hey Pete, finally got a computer back running here. Too bad Ed couldn't get these ready for us before vacation, but I kinda figured they wouldn't be. I'll be ready to get right to work on these as soon as they get here.
        Vapor Audio

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        • #49
          Re: MiniByzy (Mini Byzantium) Build Thread

          So these are going to be fitted with the RS28 and waveguides? What's the plan for the bottom end?

          रेतुर्न तो थे स्रोत
          return to the source
          leviathan system thread
          deadhorse thread
          shockwave build thread

          instagram :: greywarden_13

          in war, victory . . . in peace, vigilance . . . in death, sacrifice.

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          • #50
            Re: MiniByzy (Mini Byzantium) Build Thread

            This is just SICK woodworking........!!

            Hey Greywarden, how you doing man!!
            Bryan K.

            Midwest Audio Club

            Speedster | Sub Attachť | The Wildeman | Sean's NLA Towers | CO‹GAR, COUGAR II and CO‹GAR JR | Triton | Lithium | J-Boom | Trym MLTL | Docere MLTL

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            • #51
              Re: MiniByzy (Mini Byzantium) Build Thread

              Originally posted by greywarden View Post
              So these are going to be fitted with the RS28 and waveguides? What's the plan for the bottom end?
              We will try the RS28, but it still has to convince me. It's a nice sounding tweet, just from what I've heard ... not memorable. I'd like something with a bit more snap to it, like the AirCirc but at a better price point.

              Plan as of right now is to use a Vifa NE225 on the bottom. A big benefit of using a large deep waveguide is how much load it takes off the botom end of the tweeter, and makes it able to cross easily to a well behaved 8" woofer instead of being limited to a 7". There are a couple other options we're looking at, but most others seem to want much more cab volume.
              Vapor Audio

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              • #52
                Re: MiniByzy (Mini Byzantium) Build Thread

                Originally posted by DoubleTap View Post
                Hey Pete, finally got a computer back running here. Too bad Ed couldn't get these ready for us before vacation, but I kinda figured they wouldn't be. I'll be ready to get right to work on these as soon as they get here.
                You and me both brother!!! I'm champing at the bit to get 'em loaded up and finished.

                Originally posted by greywarden View Post
                So these are going to be fitted with the RS28 and waveguides? What's the plan for the bottom end?
                RS28, and most likely, the Vifa NE225W. However, there are a LOT of other woofers that will work in there, and tweeters too. The waveguide will be machined into the 2" thick, removable front baffle.
                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


                • #53
                  Re: MiniByzy (Mini Byzantium) Build Thread

                  Originally posted by DoubleTap View Post
                  We will try the RS28, but it still has to convince me. It's a nice sounding tweet, just from what I've heard ... not memorable. I'd like something with a bit more snap to it, like the AirCirc but at a better price point.

                  Plan as of right now is to use a Vifa NE225 on the bottom. A big benefit of using a large deep waveguide is how much load it takes off the botom end of the tweeter, and makes it able to cross easily to a well behaved 8" woofer instead of being limited to a 7". There are a couple other options we're looking at, but most others seem to want much more cab volume.
                  We've got more options now that we actually know the volume of the enclosure. With 1.25 cubic feet to play with, the local universe of drivers just got a lot larger. The SB Acoustics 8 (sealed) and the Discovery 8 will work. The Wavecor 7" 8 Ohm will work, and even that Peerless HDS 831735.

                  And check this out:
                  The Scan-speak 22W/8851T is a new addition to the Revelator line. This robust 8" woofer was designed to provide deep and accurate bass in a small enclosure. This woofer features a 2" voice coil on a titanium former, a low loss linear suspension and symmetric drive motor. The deep set hard paper cone is attached to the frame with a minimal reflection rubber surround. The 9mm X-max insures good linear travel.
                  We suggest a 1.2 cubic foot enclosurespec sheet, and seeing a dip at 800Hz, it occurs to me that the baffle diffraction peak will be sitting right there. It's pricey, but it has the most performance potential among the candidates I've seen so far.

                  That Audio Technology C-Quenze 8 would work perfectly, IF the Qes parameter was increased. By adding 1.5 Ohm in series with the woofer, a cabinet tuning of 40Hz with a 3" port, 8.5" long, you'd get F3 of 45Hz, and only give up 1dB of mid band sensitivity, which you lose to BSC anyway. A low pass using 20ga inductors would put the source resistance right where it needs to be for optimal bass response in that enclosure.

                  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


                  • #54
                    Re: MiniByzy (Mini Byzantium) Build Thread

                    And check this out:
                    The Scan-speak 22W/8851T is a new addition to the Revelator line. This robust 8" woofer was designed to provide deep and accurate bass in a small enclosure. This woofer features a 2" voice coil on a titanium former, a low loss linear suspension and symmetric drive motor. The deep set hard paper cone is attached to the frame with a minimal reflection rubber surround. The 9mm X-max insures good linear travel.
                    We suggest a 1.2 cubic foot enclosurespec sheet, and seeing a dip at 800Hz, it occurs to me that the baffle diffraction peak will be sitting right there. It's pricey, but it has the most performance potential among the candidates I've seen so far.
                    Hi Pete,

                    I have an 8" paper and an 8" aluminum cone Revelator I'd be willing to lend you for testing/measurement to determine viability. Let me know if this is of interest to you. This project greatly intrigues me... been wanting to work on a 2-way design the 8" Revelators for some time. Deciding which one to use (paper or aluminum) is the first step. I presume that for a two-way application, the paper would be the better route to go.

                    What other thoughts on tweeters do you have? While he RS28 is OK, I think there are far better options available... especially if you're going with a Revelator on the bottom.

                    EDIT: Btw, great work and design on the cabinets!

                    Regards,
                    Scott
                    Last edited by scottq; 07-11-2011, 01:23 PM. Reason: forgot a comment
                    SEC DIY 2014 Speaker Show is on! *November 8th*
                    Wanna win a set of Newform Research R30 ribbons?!?!
                    SEC DIY 2014 Thread

                    SEC DIY 2012 Speaker Show
                    SEC DIY 2011 Speaker Show

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                    • #55
                      Re: MiniByzy (Mini Byzantium) Build Thread

                      Originally posted by scottq View Post
                      Hi Pete,

                      I have an 8" paper and an 8" aluminum cone Revelator I'd be willing to lend you for testing/measurement to determine viability. Let me know if this is of interest to you. This project greatly intrigues me... been wanting to work on a 2-way design the 8" Revelators for some time. Deciding which one to use (paper or aluminum) is the first step. I presume that for a two-way application, the paper would be the better route to go.

                      What other thoughts on tweeters do you have? While he RS28 is OK, I think there are far better options available... especially if you're going with a Revelator on the bottom.

                      EDIT: Btw, great work and design on the cabinets!

                      Regards,
                      Scott
                      that's a very generous offer Scott, and you might be taken up on it!!! ;)

                      We've got a whole slew of potential choices in tweeter. The Air Circ 6600, of course, is on the list. The key is one with a fairly extended low end.

                      What will be the real determining factor is how it sounds in the waveguide.
                      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


                      • #56
                        Re: MiniByzy (Mini Byzantium) Build Thread

                        We've got a whole slew of potential choices in tweeter. The Air Circ 6600, of course, is on the list. The key is one with a fairly extended low end.

                        What will be the real determining factor is how it sounds in the waveguide.
                        My I suggest the Morel MDT-30?
                        SEC DIY 2014 Speaker Show is on! *November 8th*
                        Wanna win a set of Newform Research R30 ribbons?!?!
                        SEC DIY 2014 Thread

                        SEC DIY 2012 Speaker Show
                        SEC DIY 2011 Speaker Show

                        Comment


                        • #57
                          Re: MiniByzy (Mini Byzantium) Build Thread

                          Woofer has arrived, and what a beauty. Now Ed can cut perfect custom holes for this beast.

                          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


                          • #58
                            Re: MiniByzy (Mini Byzantium) Build Thread

                            Wow, that woofer is pretty! Those Vienna Sausage fingers, not so much
                            Vapor Audio

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                            • #59
                              Re: MiniByzy (Mini Byzantium) Build Thread

                              Originally posted by DoubleTap View Post
                              Wow, that woofer is pretty! Those Vienna Sausage fingers, not so much
                              That's our Viking cabinet maker's paw.
                              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


                              • #60
                                Re: MiniByzy (Mini Byzantium) Build Thread

                                That's our Viking cabinet maker's paw.
                                He must love touch screen phones. :D
                                "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

                                http://www.diy-ny.com/

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