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"Canvas" details....Time for release!

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  • "Canvas" details....Time for release!

    I have been uploading pictures for a bit now, and most of the details are there in blurbs when you look at the pictures. I will be doing a full-writeup maybe this evening if I can get it done.

    I think "Diamond-Port" technology is superior to silly single-ports. :rolleyes:

    One note for the wiggle-lookers:
    I had to reverse the tweeter polarity from the simulation to get it to sum flatter through the midrange, and this was apparent in listening only, prior Iowa. I had Dennis J. take a measurement, of which he stated the impulse response was upside down. I told him it was the way it sounded better and we just proceeded. The actual measurement will be sent my way hopefully soon, so the rest of you can see it. It has a shallow wide-range BBC centered around 2kHz, or roughly where the xover is placed. I should have had him measure it after I reversed the tweeter, but I did not do so. The only thing that brings to mind some inaccurate results is that I did not measure the 2.7mH P-core before installation. Everything else was measured and included in the sim as I had them, even though the schematic I made is spec-values, and they were also just fine in the sim. I'm just not really sure how that happened.

    With the above stated, I still really like them. They are balanced, a little laid back, and have solid bass with decent extension.
    Here's the nitty-gritty, and just check my Photobucket now or my blog later for more info.
    Later,
    Wolf

    EDIT: 7/20/09
    I'm an idiot- To correct what is above, they should be reverse polarity, not normal as at many DIY events have they appeared. I must say Dennis was correct, and I was not apparently listening intently enough. If you want an inherent BBC, use the normal wiring as it is not objectionable. However, the reverse polarity is how it should be wired, and has been changed in my writeups and the graphs and schematics. I am sorry for those that may have built these in error, and I apologize.
    Best regards,
    Wolf
    PS- they *are* blue, not purple.






    Last edited by Wolf; 07-20-2009, 01:41 AM. Reason: Mistake in wiring...
    "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:
    https://app.photobucket.com/u/wolf_teeth_speaker

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

  • #2
    Re: "Canvas" details....Time for release!

    Wolf,

    Looks great! The back of the speaker has some really unique inlays. What kind of finish is on the front baffle?

    Comment


    • #3
      Re: "Canvas" details....Time for release!

      Originally posted by brianpowers27 View Post
      Wolf,

      Looks great! The back of the speaker has some really unique inlays. What kind of finish is on the front baffle?
      Inlays? The back has a set of 4, 1" dia. ports, and the terminals I mounted from the inside to be different. I used a rabbet bit to get that figure-8 shape around them.

      The front, as well as the rest of the boxes' finish happened purely by accident in result, not application. I wanted a smoky-silver, reminiscent of the old Conn trumpets, or something a little lighter than black-chrome. I had Krylon Silver (not hammered) as a base-coat, and Krylon Crystal-Color Slate-Black as the top/finish coat before lacquer. I did a small test-piece prior that looked good, and in the light I had looked at, also like I wanted. My wife was going to then spot/pour/splatter paint about 5 different shades/types of purple to her liking.

      It dried this rich, deep blue. Like Midnight-Blue in the Crayola box. The finish looks deep, and 3D, and will shift when you look across it's surface. My wife chose not to do anything further to it and risk as good as it already looked, so that's how it stayed. I then put about 6 coats of Minwax gloss-lacquer on 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:
      https://app.photobucket.com/u/wolf_teeth_speaker

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

      Comment


      • #4
        Re: "Canvas" details....Time for release!

        Your speakers just keep getting better and better. That is a really neat port. I think you've got some Andy G. in you.
        Building it big and playing it loud! Because we all know size really does matter, and a little over compensation never hurt anyone. :eek:

        Comment


        • #5
          Re: "Canvas" details....Time for release!

          Originally posted by Todd G. View Post
          I think you've got some Andy G. in you.
          It IS a series crossover! ;)
          Isn't it about time we started answering rhetorical questions?

          Paul Carmody's DIY Audio Projects
          Twitter: @undefinition1

          Comment


          • #6
            Re: "Canvas" details....Time for release!

            Wolf I have to say it is the nicest looking port I have ever seen!

            Comment


            • #7
              Re: "Canvas" details....Time for release!

              Man, I just love your stuff.

              I've just gotta find my way out there one of these days to listen to your stuff...

              Nice work as always!!!


              Mark


              And yes, they were worth the wait...;)

              M
              You go your way, I'll go mine. I don't care if we get there on time.

              ~Pink Floyd

              Comment


              • #8
                Re: "Canvas" details....Time for release!

                You're model of the tweeter is very similar to results I was getting using the ND28 data from Zaph. I abandoned the idea of using because I was afraid the undulations would be audible (requiring an EQ I don't have). Do you find that to be the case?
                - John

                "Injustice anywhere is a threat to justice everywhere." - Dr. M. L. King
                www.BuildTheDream.org

                Comment


                • #9
                  Re: "Canvas" details....Time for release!

                  The port structure is pretty cool. Too bad you didnt have room to showcase it more.

                  Comment


                  • #10
                    Re: "Canvas" details....Time for release!

                    Originally posted by HareBrained View Post
                    You're model of the tweeter is very similar to results I was getting using the ND28 data from Zaph. I abandoned the idea of using because I was afraid the undulations would be audible (requiring an EQ I don't have). Do you find that to be the case?
                    Keep in mind that at that point on the scale the range between frequencies is very narrow so the undulations look a bit more exaggerated compared to the lower frequencies that are more spread out on the graph. Plus they are only a couple of db so audibility would be minimal. Assuming the tweeter has low distortion in that region I suspect it sounds quite good. Plus all the sound in that region is for the most part harmonics of fundamental tones and in a region where differences in tone are hard to discern. It is easy to pick out 100Hz from 500Hz but not so easy to tell 10000Hz from 12000Hz.
                    Dave

                    If you can read this, thank a teacher.
                    If you are reading it in English thank a Veteran
                    .

                    Comment


                    • #11
                      Re: "Canvas" Writeup posted!

                      http://techtalk.parts-express.com/blog.php?b=67
                      Last edited by Wolf; 07-20-2009, 01:52 AM. Reason: corrected blog entry....
                      "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:
                      https://app.photobucket.com/u/wolf_teeth_speaker

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

                      Comment


                      • #12
                        Re: "Canvas" details....Time for release!

                        Originally posted by Todd G. View Post
                        Your speakers just keep getting better and better. That is a really neat port. I think you've got some Andy G. in you.
                        Thanks, Todd! You seem to be often supporting my "weirdness"! :D

                        Yeah- I suppose I have *some* Andy G in me. For the most part, though, I've been *different* most of my life, never taking the obvious route through life. I sometimes make things harder than they have to be, but I like the results.
                        Later, and thanks,
                        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:
                        https://app.photobucket.com/u/wolf_teeth_speaker

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

                        Comment


                        • #13
                          Re: "Canvas" details....Time for release!

                          Originally posted by undefinition View Post
                          It IS a series crossover! ;)
                          HEH! Hey- when you attempting one? ;) I'm not "devoted" like Andy is to "simple-series" networks though. Most of mine are fairly complex, and prefer SS amps.
                          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:
                          https://app.photobucket.com/u/wolf_teeth_speaker

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

                          Comment


                          • #14
                            Re: "Canvas" details....Time for release!

                            Originally posted by philiparcario View Post
                            Wolf I have to say it is the nicest looking port I have ever seen!
                            Thanks, Philip!
                            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:
                            https://app.photobucket.com/u/wolf_teeth_speaker

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

                            Comment


                            • #15
                              Re: "Canvas" details....Time for release!

                              Originally posted by Mark65 View Post
                              Man, I just love your stuff.

                              I've just gotta find my way out there one of these days to listen to your stuff...

                              Nice work as always!!!


                              Mark


                              And yes, they were worth the wait...;)

                              M
                              Yeah- you *sorta* knew what was coming. I don't recall mentioning the port to very many people. It is just...... ***different*** ...... isn't it!?:D Maybe someday, Mark, someday!
                              I'm glad you liked them, thanks,
                              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:
                              https://app.photobucket.com/u/wolf_teeth_speaker

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

                              Comment

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