Teach me about Lpads....

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  • bowbender7
    Junior Member
    • Nov 2007
    • 11
    #1

    Teach me about Lpads....

    Assume I am using a crossover that has a tweeter Lpad consisting of - : 4ohm series, 30ohm parallel - ...

    If I wanted to change the upper end response, I understand that generally dropping the value slightly in the series resistor will brighten things up and vise-versa. What adjustment ratio would need to be followed, if any, regarding the parallel resistor to prevent phasing issues or any other problems that may surface?

    (Bear with me I am learning...)

    Thanks, Sean
    Tags: None
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    • ThomasW
      Moderator Emeritus
      • Aug 2000
      • 10933
      #2
      Scroll to the bottom of the page.....
      Crossover Design Chart and Inductance vs. Frequency Calculator(Low-pass)
      http://www.apicsllc.com/apics/Misc/filter2.html
      Use this JavaScript calculator to determine the value of inductor to use in your first order butterworth low pass filter crossover design.

      IB subwoofer FAQ page

      "Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson
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        • bowbender7
          Junior Member
          • Nov 2007
          • 11
          #3
          Thank you very much Thomas!

          :T
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