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Public address system

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Public Address System - Technology in every day life (CBSE Grade : 8 Physics)

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PA System Installation - Basic Information

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Wireless Public Address System for Schools

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PA SYSTEM Demo Package

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Public Address System - Automation

A public address system is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music. PA systems are used in any public venue that requires that an announcer, performer, etc. be sufficiently audible at a distance or over a large area. Typical applications include sports stadiums, public transportation vehicles and facilities, and live or recorded music venues and events. A PA system may include multiple microphones or other sound sources, a mixing console to combine and modify multiple sources, and multiple amplifiers and loudspeakers for louder volume or wider distribution.
    • Early systems 

    • Small systems 

    • PA over IP 

    • Long line PA 

    • Small venue systems 

    • Large venue systems 

    • Acoustic feedback