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Thread: getting around factory amp issue

  1. #11
    Constant Bitrate
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    Nov 2012
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    When you add up the shipping and handling buying parts from Digi-Key or Mouser, and the time, it is better (IMO) to buy something that works and adapt it, rather then re-invent the wheel.

    All you have to do short out the input lines and that will mute the sound.

    If you add a resistor, you can attenuate so it doesn't go dead silent.

    On a 10k input I would try a 250 ohm load and see how much that drops the sound.

    The device I gave you a link to will do two lines.

    Add another one to do the four.

    It even has a 12 volt trigger and I bet it doesn't
    "pop" when switching either.

    Here is a device to look at:

    http://www.analog.com/en/switchesmul...s/product.html

    What exactly are you trying to do?

    Do you want to "bleed" the GPS voice commands over the normal audio?

    I would just switch the inputs (FET) and give the GPS priority.
    Last edited by heavymetals; 04-03-2013 at 11:01 PM.

  2. #12
    MySQL Error soundman98's Avatar
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    on the border of northern IL/IN
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    Quote Originally Posted by heavymetals View Post
    that's really going to be the easiest way to accomplish what you want to do. $100 for a complete setup is really quite good.. of course it ruins the diy stuff, but i really don't think you could come in that low diying a solution..

    those units are a little tricky to setup to switch at the right times-- i did a niles amp in a conference room once with an identical feature(they wanted the background music to play through unless there was a conference call/video meeting)--but once they are setup, they don't need to be touched again..

  3. #13
    Variable Bitrate
    Join Date
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    thank

  4. #14
    Constant Bitrate
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    Quote Originally Posted by Champak View Post
    thank
    What did you end up doing?

  5. #15
    Variable Bitrate
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    Dec 2007
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    NY
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    I haven't done it yet because there are a few other things I have to do to the car, but I'm going to follow your suggestions and get one of those devices instead of building one.

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