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How to Use Passive Crossover Designer by Jeff Bagby

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  • #16
    Originally posted by Kornbread View Post
    Why does mine look like this and how do I fix it?


    [ATTACH=CONFIG]n1335298[/ATTACH]
    That is WinPCD, the standalone program that Dave Ralph built up to work like PCD, but without series xovers. It doesn't quite do everything that PCD (Excel) does.

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

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    • #17
      To add to Ben's (Wolf) post: Jeff Bagby's Excel based Passive Crossover Designer (PCD) hasn't been updated since 2010. There are possible issues if you use newer versions (2010 and on) of Excel, maybe others can chime in about that. David Ralph's WinPCD was written to provide the same functionality without needing Excel. As you've noticed the user interface is necessarily quite different. It doesn't have all the PCD features as Ben pointed out, but for the most part (series crossover designers excluded) it does everything that PCD does. I believe David also added some features, like directivity plots, that aren't in the original PCD.

      If you're just getting started and don't have Excel you can legally download a trial version of Excel 2003 and use that to follow the videos. With that knowledge gained you should be able to use WinPCD.
      "Everything is nothing without a high sound quality." (Sure Electronics)

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      • #18
        May seem like a dumb question to you guys, but do we use the frd and zma of the raw driver, without accounting for the enclosure, to build the crossover or are we supposed to take the frd and zma measurements after the drivers take their respective places in the enclosure and build the crossover with those measurements?
        http://techtalk.parts-express.com/fo...khanspires-but
        http://techtalk.parts-express.com/fo...pico-neo-build
        http://techtalk.parts-express.com/fo...ensation-build

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        • #19
          when ever possible in box . specially on baffle for XO work .
          Paper Towers
          RS180P/28F surrounds
          Boombox

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          • #20
            Originally posted by filmslayer View Post
            when ever possible in box . specially on baffle for XO work .
            What are most using to measure resistance of the mounted drivers? What options are out there, especially those affordable and easy to understand?
            http://techtalk.parts-express.com/fo...khanspires-but
            http://techtalk.parts-express.com/fo...pico-neo-build
            http://techtalk.parts-express.com/fo...ensation-build

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            • #21
              DATs or http://techtalk.parts-express.com/fo...ustrated-guide will work . my comment was directed more towards the frd files ...
              Paper Towers
              RS180P/28F surrounds
              Boombox

              Comment


              • #22
                Originally posted by Wolf View Post

                That is WinPCD, the standalone program that Dave Ralph built up to work like PCD, but without series xovers. It doesn't quite do everything that PCD (Excel) does.

                Later,
                Wolf

                Thanks for the clarification.
                All about Speaker Design YouTube Channel

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                • #23
                  I just added the 5th installment. I've already shown how to auto-populate a 2nd order crossover based off the frequency. Unfortunately, this only creates a Linkwitz-Riley, which is not always the best for the speakers you choose. In this video, I will go over the 4 different types of crossovers in this program (Bessel, Butterworth, Variable Q, Linkwitz-Riley), how to determine their component values. Each one of these crossovers will directly affect your final frequency response of the speaker you are building. So if the auto calculate does not get you your desired response, try a different 2nd order crossover.

                  https://www.youtube.com/watch?v=v2EEIECq_fs
                  All about Speaker Design YouTube Channel

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                  • #24
                    Those are really good, thanks for making! Will you be getting into phase, graphing, how to correct, etc?

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                    • #25
                      Those are really good, thanks for putting them together! Much appreciated.... Will you get into phase, graphing and correcting?

                      Thanks again.

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                      • #26
                        I will be getting into the graphs more in depth as we go. I just got back from vacation, so i should have some more up soon. Is there anything specific you want to look at in the graphs?
                        All about Speaker Design YouTube Channel

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                        • #27
                          Ran across your tutorials on YouTube a few days ago. Very helpful! Thanks for making them.

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                          • #28
                            Alright, I just finished the 6th part - Determining Box Size. This shows how to determine the box size for vented or sealed as well as determining the response by using Passive Crossover Designer or WinISD. Enjoy! https://www.youtube.com/watch?v=gizfbOBFBlM
                            All about Speaker Design YouTube Channel

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                            • #29
                              I just finished part 7, which is on phase. If you ever wondered how to calculate phase in PCD, here it is.
                              https://www.youtube.com/watch?v=7JFY7vc_zm4
                               
                              All about Speaker Design YouTube Channel

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