Question about Mackie SRM-450 System

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There is crackling coming from the horn as soon as the power is turned on, the level of the crackle does not alter with the volume control, the cabinet performs fine otherwise ?????

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  • dekw1 Jun 27, 2009

    The horn itself is fine, I tried a new horn and the problem is still there,
    its being generated from somewhere on the circuit board ??


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The horn speaker is wearing out. Inside speakers, there is a magnet, the speaker part is attached to a cone that slides over the magnet, They tend to make crackling noises. Try very gently to apply pressure to the horn and then release. If you hear a scratching sound, the horn will need to be replaced

Posted on Jun 27, 2009

  • Nate Stansfield
    Nate Stansfield Jun 27, 2009

    Oh I see what you mean. You will need to replace the resistor.

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