A public address system (pa system) is an electronic amplification system with a mixer, amplifier and loudspeakers, used to reinforce a sound source, e. G. , a person giving a speech, a dj playing prerecorded music, and distributing the sound throughout a venue or building.
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 is an electronic amplification system with a mixer, amplifier and loudspeakers, used to reinforce a sound source, e. G. , a person giving a speech, a dj playing prerecorded music, and distributing the sound.){kind=link}