PA System2018-09-16T12:29:32+00:00

PA System

A public address system (PA 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.

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—such as schools, stadiums, and passenger vessels and aircraft. Intercom systems, installed in many buildings, have both speakers throughout a building, and microphones in many rooms so occupants can respond to announcements.

PA and Intercom systems are commonly used as part of an emergency communication system.


  • Able to link large systems in a single network.

  • Expandable for future expansions

  • Less cabling as compared to conventional system for system interlink. Lower cost for large distributed system.

  • Long distance voltage drop (cabling loss) avoided.

  • Allows bidirectional paging and controls

  • Allows bidirectional paging and controls

  • Wireless connectivity solutions.

PA Speakers and Subwoofers

To build a PA system easily and as simply as possible, it is better to use powered speakers, which require fewer connections. However, passive speakers offer a comparatively high level of freedom.

Portable PA Systems

Portable PA systems are designed to sound great while being easy to carry, setup, and tear down. Portable public address systems are used in a variety of applications, including sound reinforcement and stage monitoring for events.

PA Management System

Nothing turns audiences away like annoying and potentially painful audio feedback. IdeasIT helps choosing the best PA management system available in the market.

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