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When does a dup sound comes out of a pa speaker

Last response: in Home Audio
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January 30, 2010 5:55:13 AM

why does a dup sound comes through the pa speaker ,when the amp is switched on......

More about : dup sound speaker

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Anonymous
January 30, 2010 6:11:41 AM
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I suspect it's usually the power supply. Many amplifiers use a timed electromechanical relay switch that isolates the speakers until the power supply has settled down.
February 6, 2010 2:00:52 AM

Best answer selected by abdielsam.
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