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Crossover Advice for my speakers

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  • Crossover Advice for my speakers


  • #2
    Can you post graphs of your frequency response, so that members can see what you have. Also you can make your files available for members to help you out. With just a picture of your crossover it's about hopeless for anybody to help you.
    Jeff

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    • #3
      Beautiful cabs, beautiful drivers, high end xo components. You've got all the right pieces, now you just have to make them dance. How was the current xo designed? As peepaj said, do you have measurements or was it all done by ear? You've basically got 1st order electrical for all drivers right now. It would be VERY difficult to make anything, let alone a 3-way, sound great like that.

      Dan
      _____________________________
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      • #4
        Yeah, with hard cones like that, you're probably going to need some notch filters. Simply buying more expensive caps and resistors isn't going to address that problem.
        Isn't it about time we started answering rhetorical questions?

        Paul Carmody's DIY Audio Projects
        Twitter: @undefinition1

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        • #5
          Something tells me the issue you hear in the tweeter is likely in the breakup of the midrange, BUT- the HP on the tweeter is effectively a 1st order because the 4.7 ohm resistor is a large value enough to reduce the effectiveness of the shunt coil in series with it. Try halving the resistor value first, but agreed that measurements are key to getting the best results with or without the premium parts.

          Later,
          Wolf
          "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
          "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
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          • #6
            sthttp://www.troelsgravesen.dk/Jenzen-....htm#Crossover

            Maybe i can make some adjustments and go for it ?

            With only adjustments in series resistor for the Midds because of the efficiency of this 173-6-90 and also the breaking point on the lower frequencies by make 88uF to 94uF. And on tweeter remove the resistor R1031?! I have I think very Hi-End components to make this kind of 2nd order XO. Maybe I have to buy some resistors and inductors. But his will be not a problem I think.


            Click image for larger version

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            • #7
              Where do you live? You owe it to those drivers and cabinets to have them measured to design a crossover that will integrate them well. You can guess all day long at what single high-end cap would "sound best" on that tweeter, or someone competent could measure the drivers in those cabs and, in the course of an afternoon, design a circuit for that tweeter that allowed it to roll off smoothly, ready to transition to the mid (and at the perfect SPL to match the mid). Same for all the other drivers. You've got several thousand dollars wrapped up there, I'm sure. Take it the rest of the way and have a system that most of us would die for, instead of the one you have now, which most of us probably wouldn't listen to.

              Dan
              _____________________________
              Tall Boys
              NRNP Computer Sub
              The Boxers
              The Hurricanes
              The Baronettes
              Conneccentric
              UX3

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              • #8

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                • #9
                  Here's my XO suggestion -
                  2nd order HP w/L-pad: 5uF series cap, 1.0mH shunt coil (higher DCR OK), L-pad: series 5ohms, parallel 5ohms

                  2nd order BandPass w/"L": 1.2mH series coil, 22uF series cap, (2 shunts) 4uF cap, also - 4.0mH shunt coil, L-pad: SR = 6ohms, PR = 4ohms

                  "tanked" 2nd order LP for parallelled Seas woofers: 5mH low DCR series coil, 120uF shunt cap, a teeny 0.22uF (notch) cap needs to parallel the 5.0mH series coil.

                  Fcs near 450Hz and 2.3kHz. Normally, only the mid would be connected reverse polarity.

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                  • #10
                    You'd do well if you took Chris's advice.

                    Good luck! Mark

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                    • #11
                      I will definitely take his advice. I already asked for PM for the drawing of his XO concept. Because my language and XO building knowledge is limited.Only correct if I'm wrong. I have to do this with my already 1st order from post nor 1?

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                      • #12
                        Click image for larger version

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                        Off you go.

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                        • #13
                          Click image for larger version

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                          I did a sim on BoxSim this XO , :

                          There it is : http://www.filedropper.com/accutonspeakers2ndorder

                          A problem in 3kHz area!? Or incorrect data in the file.



                          I know I did something wrong with this C30-06-24 spec.
                          Attached Files
                          Last edited by SlowikPL; 03-21-2016, 10:12 AM. Reason: Add Tweeter plot and spec.

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                          • #14
                            If that's MY xo, show us your raw tweeter plot? (Don't think I know "BoxSim".)

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                            • #15
                              I Think i made fault : Now looks better! By default the driver setting was : start from 2x Fc ( that cause the deformation. ) parallel


                              What I can do is first step Change polarity on my C173-06-090 and make little adjustments. My C173-06-090 was according my simulation doing very little se below:



















                              I have those Capacitors Values :
                              Duelund VSF 1uF 1
                              Duelund VSF 1uF 1
                              Duelund CAST 1 1
                              Duelund CAST 1 1
                              Duelund CAST 1,5 1,5
                              Duelund CAST 1,5 1,5
                              Duelund CAST 2,2 2,2
                              Duelund CAST 2,2 2,2
                              Duelund VSF 2,2 2,2
                              Duelund VSF 2,2 2,2
                              Duelund CAST 3,3 3,3
                              Duelund CAST 3,3 3,3
                              Duelund CAST 3,3 3,3
                              Duelund CAST 3,3 3,3
                              Duelund CAST 3,3 3,3
                              Duelund CAST 3,3 3,3
                              Duelund CAST 4,7 4,7
                              Duelund CAST 4,7 4,7
                              Duelund VSF 6,8uF 6,8
                              Duelund VSF 6,8uF 6,8
                              Duelund VSF 6,8uF 6,8
                              Duelund VSF 6,8uF 6,8
                              Duelund VSF 6,8uF 6,8
                              Duelund VSF 6,8uF 6,8
                              Duelund CAST 6,8uF 6,8
                              Duelund CAST 6,8uF 6,8
                              Duelund CAST 8,2uF 8,2
                              Duelund CAST 8,2uF 8,2
                              Duelund VSF 10uF 10
                              Duelund VSF 10uF 10
                              Duelund VSF 24uF 24
                              Duelund VSF 24uF 24
                              Duelund VSF 40uF 40
                              Duelund VSF 40uF 40
                              Duelund CAST 50 50
                              Duelund CAST 50 50
                              Last edited by SlowikPL; 03-27-2017, 08:12 AM.

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