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Sehlin Rhodium- crossover help

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  • Sehlin Rhodium- crossover help

    Dear Parts Express,

    I've been working on building Scott's Rhodium speakers.
    While my cabinet making skills frankly suck, the cabinet still looks okay.

    I'm ready to wire up the speakers, but for the life of me can't figure out how the thing should look like...

    Find sending me a picture of your actual crossover?

    -Matt

  • #2
    This one right? (https://sites.google.com/view/sehlin...ium?authuser=0)
    Click image for larger version

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    Apologies in advance if this is rudimentary advise and not what you're asking....

    It doesn't have to "look" like anything specifically, you just need to make sure all the parts are connected together per the diagram.

    To make it a 'little' easier to follow, you can literally just connect all the blue dots I've highlighted together to the same point.
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    m = coil, -||- = capacitor, [] = resistor
    Last edited by DeZZar; 04-09-2021, 12:17 AM.
    Constructions: Dayton+SB 2-Way v1 | Dayton+SB 2-Way v2 | Fabios (SB Monitors)
    Refurbs: KLH 2 | Rega Ela Mk1

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    • AEIOU
      AEIOU commented
      Editing a comment
      Connect the Dots! LOL

  • #3
    thanks!

    I'm a super beginner

    Comment


    • #4
      currently trying to wire things together.

      figuring out the physical layout of things is tricky!

      Comment


      • #5
        well...to make it simpler and to get started you can lay them out exactly as you see them in the diagram...
        Constructions: Dayton+SB 2-Way v1 | Dayton+SB 2-Way v2 | Fabios (SB Monitors)
        Refurbs: KLH 2 | Rega Ela Mk1

        Comment


        • #6
          If you take Dazzar's dwg. w/the blue DOTS, and INVERT (flip) the woofer section - placing it BELOW the tweeter (and flipping it), you can see that all the blue dots will come together. You can then just wire them all together, OR (if they're too far apart) you could run a ground strap (a hunk of stripped (solid) Romex (house wiring)) across your board (a.k.a. a "buss") and solder all the gnd leads to that.

          Comment


          • #7
            I had a bunch of stuff scattered on my workbench, so I threw this together, it's kind of crude, but maybe Chris can idiot check it for me:

            Comment


            • #8
              Got this done last night, but was a bit sleep deprived.

              It's alive!!!!!! Seriously, thanks for the help everyone.
              Attached Files

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              • #9
                If you can still make changes, lay the 0.35mh inductor on its side. (Like Jakes_Dad in post #7).

                Comment


                • #10
                  Thanks!

                  I was just going to finish them up today.

                  Btw, I have a few extra resisters? I think 10 w. Was it suggested as an audio tweak in the crossover?

                  Anyways, I'm excited to hear how these sound.

                  -Matt

                  Comment


                  • #11
                    I just wanted to thank everyone here.

                    Just finished these...at first they were disappointing.
                    Then, I noticed that I accidentally switched the tweeter and woofer connections.

                    After switching them out, they sound amazing.

                    Comment


                    • #12
                      Originally posted by mlau View Post
                      currently trying to wire things together.

                      figuring out the physical layout of things is tricky!
                      You can do a rough layout on a piece of cardboard, punch as many holes as you need to, change it several times until you are confident with the arrangement.

                      Comment


                      • #13
                        I'll need to post pictures......but they've won my wifey's approval.
                        They're the best speakers she's heard.

                        I've got her okay for future speaker projects. :D

                        Comment


                        • #14
                          Originally posted by mlau View Post
                          Just finished these...at first they were disappointing. Then, I noticed that I accidentally switched the tweeter and woofer connections. After switching them out, they sound amazing.
                          If you inadvertently connected the Fountek Neo 1.0 ribbon tweeters to the low pass network in the crossovers and then played some music signal through that at audible level, then I suspect that you may have stretched and damaged the delicate ribbon diaphragms in the tweeters.
                          "Our Nation’s interests are best served by fostering a peaceful global system comprised
                          of interdependent networks of trade, finance, information, law, people and governance."
                          - from the October 2007 U.S. Naval capstone doctrine
                          A Cooperative Strategy for 21st Century Seapower
                          (a lofty notion since removed in the March 2015 revision)

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