Question on crossover settings with Pioneer 811 and Audiosource SW 15

Discussion in 'Archived Threads 2001-2004' started by DanielN, Nov 14, 2002.

  1. DanielN

    DanielN Stunt Coordinator

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    I dont know if this is a stupid question or not but here goes. My 811 has 100 hz for the lowest crossover settings. My sub has settings from 40 hz to 180 hz. Do I need to keep the 2 at the same frequency?
     
  2. John Garcia

    John Garcia Executive Producer

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    Set the sub's x-over as high as it will go, the receiver's x-over is already handling it.
     
  3. DanielN

    DanielN Stunt Coordinator

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    Thanks.
     
  4. DanielN

    DanielN Stunt Coordinator

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    Ok, just to be sure...these are the specs of my Axiom 7.1 speaker setup. Is 100 Hz fine as my crossover setting on the Pioneer with these speakers? The Pioneer has settings of 100, 150, and 200 Hz and the sub goes from 40 to 180 Hz I believe.

    Millennia M1ti Specifications
    Max Amp Power 125 Watts
    Min Amp Power 20 Watts
    Freq Resp +/-3dB (Hz) 80-22K
    Freq Resp +3dB/ -9dB (Hz) 70-22K
    SPL in Room 1w/1m 90 dB
    Anechoic SPL 1w/1m 86 dB

    VP50 Specifications
    Max Amp Power 125 Watts
    Min Amp Power 10 Watts
    Freq Resp+/-3dB (Hz) 100-22K
    Freq Resp +3dB/ -9dB (Hz) 80-22K
    SPL in Room 1w/1m 91 dB
    Anechoic SPL 1w/1m 87 dB

    QS2 Specifications
    Max Amp Power 125 Watts
    Min Amp Power 20 Watts
    Freq Resp+/-3dB (Hz) 110-22K
    Freq Resp +3dB/ -9dB (Hz) 85-22K
    SPL in Room 1w/1m 90 dB
    Anechoic SPL 1w/1m 86 dB


    All of this frequency and db settings is so damn confusing. I need to find an HT for Dummies book hehe.
     
  5. John Garcia

    John Garcia Executive Producer

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    Based on those specs (and I should have asked what speakers you are working with) you will want to set your x-over higher. Since the majority of the speakers are only good to 80hz, ideally, you would want a 160Hz x-over (one octave above their lowest extension), but I think that will be a bit high for the sub. I believe another post said you had 120 and 160? as x-over points also, I would try the 120 first, still with the sub set to it's highest.
     
  6. ThomasL

    ThomasL Supporting Actor

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    The 811S only has choices of 100, 150, and 200. I also have bookshelf speakers that go down to 70 HZ +- 3/db (with lower extension according to my radio shack meter and some test tones) and have set my crossover to 100Hz. 150Hz just seems a tad too high considering the limits of my sub and the fact that my sub's crossover which I can't bypass as far as I know (it's a Paradigm PDR8) only goes as high as 150Hz. 120Hz would probably be ideal for you but since you don't have that option, you may want to try 100Hz or 150Hz both with the sub's crossover set as high as it will go. See if you hear any difference or which one sounds better to you.

    good luck,


    --tom
     

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