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Experiment with high level crossover worth it?

Discussion in 'Archived Threads 2001-2004' started by Chris PC, May 3, 2002.

  1. 1 May 3, 2002
    Chris PC

    Chris PC Producer

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    I asked about a crossover here before and I was wondering. If I set my FRONT=LARGE and SUB=NO and ran my speaker wire through a high-level crossover, and then sent that to my subwoofer, would that work ok? I know its not ideal, but didn't subwoofers used to do that anyways? My receiver has a 100 hz crossover and I'd like to try 60 to 80 hz instead. I might even even run the low pass from the crossover into a BFD DSP1100P model or the DSP1124P before going into my Mirage BPS-400.

    So I know a line-level crossover is best, but could I even make a high level crossover like I'm talking about? say with a selectable or variable crossover for high and low pass of say 60 to 90 hz? I would put the crossover right behind the receiver, as close to the receiver speaker connections as possible, because from there, I would still hope to connect to my speakers bi-wired.

    So where can I find a selectable high-level crossover? Or would I have to make it myself like people mentioned earlier?
     
  2. 2 May 3, 2002
    Ron Shaw

    Ron Shaw Stunt Coordinator

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    The problem with passive crossovers for low frequencies is both the size (value) of the inductors and capacitors. Large value inductors usually have a (relatively) high amount of series resistance, which would eat a large portion of your amplifier power, as well as degrading the damping factor of your amplifier. Large value capacitors means using electrolytics, which are the worst from a sonic point of view (highish DA). If there ever was an ideal place for an active crossover, subwoofers is it.
     
  3. 3 May 3, 2002
    Chris PC

    Chris PC Producer

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