PUBLIC ADDRESSING SYSTEM (PA SYSTEM) is an electronic sound amplification and distribution system with a microphone, amplifier and loudspeakers, used to allow a person to address a large public.

1. PA SYSTEM
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PUBLIC ADDRESING SYSTEM (PA SYSTEM)
Public Address System: (PA system) is an electronic sound
amplification and distribution system with a microphone,
amplifier and loudspeakers, used to allow a person to address
a large public.
 Simple PA systems are often used in small venues such as
school auditoriums, Temples, and small group events.
 PA systems with many speakers are widely used to make
announcements in public, institutional and commercial
buildings and locations—such as schools, stadiums, air ports
and etc.
 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.

2. PA SYSTEM
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SIMPLE PA SYSTEM ARRANGEMENT

3. PA SYSTEM
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IMPORTANT COMPONENTS OF A PA SYSTEM
 MICROPHONE/MIC (WIRED & WIRELESS)
 SPEAKER/LOUD SPEAKER
 SOUND MIXER / MIXING CONSOLE
 SOUND AMPLIFIER/POWER AMPLIFIER
 MUSIC PLAYER
 CABLES
Watch these videos for more info
1. https://www.youtube.com/watch?v=dsVEeL1B1ls
2. https://www.youtube.com/watch?v=QGYswg0OcJo