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Public Address System
Public Address System

A public address system (PA system) is an electronic sound amplification and distribution system with a microphone, amplifier and loud speakers, used to allow a person to address a large public, for example for announcements of movements at large and noisy air and rail terminals.

The term is also used for systems which may additionally have amixing console, and amplifiers and loudspeakers suitable for music as well as speech, used to reinforce a sound source, such as recorded music or a person giving a speech or distributing the sound throughout a venue or building.

Simple PA systems are often used in small venues such as school auditoriums, churches, and small bars. PA systems with many speakers are widely used to make announcements in public, institutional and commercial buildings and locations. Intercom systems, installed in many buildings, have microphones in many rooms allowing the occupants to respond to announcements.

Benefits
  • Reduced and easy maintenance
  • Simple, reduced and economical field cabling
  • Trouble free system
  • Role-based access controlFlexibility to connect the loudspeakers at longer distance
  • Facility of connecting emergency siren over the paging channel
  • Distribution of audio signal through buffered O/P
  • Bass and Treble control to custom-tailor the frequency response, for poor acoustic or highly noisy environments