DIY sub crossover, 80hz/at least 24db/octave

Discussion in 'Archived Threads 2001-2004' started by RichardMA, Apr 17, 2002.

  1. RichardMA

    RichardMA Second Unit

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    Has anyone ever seen an active crossover design that

    can do the above? I figure it might make more

    sense than a hulking inductor/cap bank.

    Thanks
     
  2. Peter Johnson

    Peter Johnson Stunt Coordinator

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    [​IMG]
    OP amps are dual-TL072 type opamps (ie you can use BB 2604/2134's etc).
    For an 80Hz crossover, replace the resistors with 42-43k ohm 1% metal film resistors.
    And its power supply..
    [​IMG]
    See projects 5 and 9 at www.sound.au.com for more info.
    PCB's can be ordered.
     
  3. ThomasW

    ThomasW Cinematographer

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    Marchand has designs that can do 24 or 48db/octave at any frequency you want. They have assembled units, EZ-kits, complete parts kits, or raw PCBs
    http://www.marchandelec.com
     
  4. RichardMA

    RichardMA Second Unit

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    Thanks for your help!
     

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