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Wiring Help: rear Zone Headphone Cutoff

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  • Wiring Help: rear Zone Headphone Cutoff

    Hi All

    First post - be gentle. I searched for an answer to this but had no luck.

    In anticipation of Centrafuse (or some other) sytem offering multi-zone capabilities, I'm designing my CapPC and amplification to include discrete rear and forward zones.

    Using a multi-channel external sound card, I hope to feed a pair of two channel amps powering front and rear speakers. Through software, I can feed the same signal to each zone or different signals to front and rear.

    I want to place a pair of headphone jacks in the rear. Normally, the rear zone audio is directed to the rear speakers. However, when one or both headphone jacks are in use, audio should go there and xut off from rear speakers.

    Anyone got pointers to a wiring diagram to effect this? PC soundcard outputs will likely be phono style.

    Thanks in advance

    Peter
    Project iLux - adventures in carputing

  • #2
    Check this out: Click Me
    It's a stereo jack that permits the transmission of the signal to pass through it when no plug is inserted, and interrupts it from passing through when the when the plug is in and feeds the signals to the plug. I think that is what you are looking for and easier than complicated wiring.
    I believe that this should be wired in between the RCA lines before it goes to the amp, because the headphones will not be able to take high amplification.
    "In the beginners mind there are many possibilities, but in the experts mind there are few."- Shunryu Suzuki
    "Do it right or don't do it at all"

    PROGRESS:
    [-------90%-] (New Car=New Build)

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    • #3
      Thanks pancit175

      Will line level phono outs from a sound card be enough to drive a pair of headphones or will I need a small headphone amp? Or better with resistors inline from power amp?

      Peter
      Project iLux - adventures in carputing

      Comment


      • #4
        I would assume so, but it's easy to just check it out. Just plug in a pair of headphones and go through the various volume levels.
        If it does require an amp you may need a different type of plug that has a SPST relay integrated and more complex wiring.
        "In the beginners mind there are many possibilities, but in the experts mind there are few."- Shunryu Suzuki
        "Do it right or don't do it at all"

        PROGRESS:
        [-------90%-] (New Car=New Build)

        Comment

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