Want to learn about building crossovers. Where to start?

Discussion in 'Archived Threads 2001-2004' started by Justin Ward, Feb 17, 2003.

  1. Justin Ward

    Justin Ward Supporting Actor

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    I want to build a crossover for my sub that acts as a rumble filter. I was thinking a steep sloped x-over at around 20hz. It is a dual voice coil system, so will I have to build two? Where can I find specific info on building a crossover of this type?
    Is this even a crossover because I do not intend on sending this subsonic signal to another driver?
     
  2. Isaac C

    Isaac C Stunt Coordinator

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    A rumble filter or subsonic filter is otherwise known as a high-pass filter. The most common ones are based on the Sallen-Key or Multiple Feedback topology. Usually, a 4th-order HP filter is enough, even a 2nd-order one will do. Have a look at the Projects section of The Audio Pages

    hth [​IMG]
     

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