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Theorized and tested: "Overdrive 10"...

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  • #16
    Interesting stuff.

    Matthew
    BSME
    Kannapolis NC

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    • #17
      First off- I sincerely apologize if this mislead anyone, but I actually have the woofer chamber measuring at 7.75" deep. I vaguely recalled upsizing the volume a smidge for braces and the magnet structure, and the old graphic said 7", so that is what I thought I built.

      The woofer measures about 5 5/8" deep if surface mounted, and the Yung SD500-6 is about 2 7/8" deep- It's pretty apparent that it would not fit if it were just 7". By my measurements in my actual box, the heatsink on the amp is virtually touching the magnet backplate, but I'm not really sure of a way to actually measure this distance. They don't appear to touch while mounting the amp.

      Click image for larger version

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      The above is corrected. I'll update the original post.
      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


      • #18
        Cool design, Ben. Nice work.
        SEC DIY 2014 Speaker Show is on! *November 8th*
        Wanna win a set of Newform Research R30 ribbons?!?!
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        • #19
          Thanks, Scott!


          Okay- in between measurement is about 0.75" from amp heatsink to backplate of woofer. I used 'play-doh squish' method, and measured the thickness. So- in the box as I built it, the BASH depth will be fine.

          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


          • #20
            Originally posted by Wolf View Post
            Thanks, Scott!


            Okay- in between measurement is about 0.75" from amp heatsink to backplate of woofer. I used 'play-doh squish' method, and measured the thickness. So- in the box as I built it, the BASH depth will be fine.

            Later,
            Wolf
            This makes sense. I started building the box and just seeing how everything would fit together and discovered the amp would not fit with the 7" chamber. Adding .75" makes it work. Anything special with the braces in the woofer chamber?

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            • #21
              Your play-doh or your daughter's?

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              • #22
                I think you can see the braces in the rear view. Just 2 between mounting holes on each side. There really isn't much room for anything else.

                Steve, it was hers, not mine.

                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


                • #23
                  Press Fit worked with the 7.75" woofer chamber. Next I gotta do the woofer cutout and amp cutout and do the braces.

                  Comment


                  • #24
                    Wow- you move fast! I just used butt joints and biscuits.
                    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


                    • #25
                      I was planning on doing a 1.7cf box with a 24" slot port, but much prefer the smaller footprint. Your design popped up just in time! Had the amp and the woofer already, just needed the PR.

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                      • #26
                        I really like this idea, I have used band-pass and rear mounted subs to lower the level of audible distortion,
                        when clients don't know any better.
                        So how do these sound at the point of hard distortion right under the spl of the dreaded "bottoming"?
                        Guess xmax's age.

                        My guess: 15. His grammar is passable. His trolling is good.

                        Comment


                        • #27
                          You probably would not hear it right away. Being a very low HD system, you can actually destroy an active driver in a PR-bandpass and not know- as long as the driver is still moving. The only reason I knew something was wrong with the first UM8-22 was that something sounded funny, and that the amp's fuse had popped prior; so I was being vigilant and observed some irregular sounds from it. Thing is- it still didn't sound bad. When I popped the PR though it did SMELL bad...and got the dreaded springy sound when pushed by hand. That is what I was hearing that sounded funny.

                          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


                          • #28
                            Wolf When you mounted the UM10, it looks like it is a little recessed. is it flush mounted or is there s specific depth. Do you recommend using a camfer bit on the back?

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                            • #29
                              It is through the outer board, and surface on the inner board. So- the rebate is 0.75" deep in 1.5" thick material.
                              I did not use a chamfer on this one, but you can if you want to. The basket is fairly open, and I wanted the strength in the baffle.

                              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


                              • #30
                                Originally posted by Wolf View Post
                                You probably would not hear it right away. Being a very low HD system, you can actually destroy an active driver in a PR-bandpass and not know- as long as the driver is still moving. The only reason I knew something was wrong with the first UM8-22 was that something sounded funny, and that the amp's fuse had popped prior; so I was being vigilant and observed some irregular sounds from it. Thing is- it still didn't sound bad. When I popped the PR though it did SMELL bad...and got the dreaded springy sound when pushed by hand. That is what I was hearing that sounded funny.

                                Later,
                                Wolf
                                This is as awesome as it is terrifying. I think I will try it!
                                Guess xmax's age.

                                My guess: 15. His grammar is passable. His trolling is good.

                                Comment

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