Public Address System

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What is a Public Address System?


A Public Address (PA) System is an electronic system that increases the apparent volume (loudness) from a sound an emitting source (e.g. Human voice, musical instrument, etc.). PA Systems are particularly used in a public venue that requires the audio message from an announcer or performer to be heard over such venue or in a targeted area with a defined public space.


A PA System may be comprised of microphones, loudspeakers, amplifiers etc. PA Systems are used as part of an Emergency Communication System.


PA Systems in Malaysia


In Malaysia, PA Systems for buildings are part of the Authority regulations. For example, according to the Subsidiary Legislation Street, Drainage and Building Act (G.N. 5178/1984), subsections 238 and 239 say:


“238. Command and control centre.

Every large premises or building exceeding 30.5 metres in height shall be provided with a command and control centre located on the designated floor and shall contain a panel to monitor the public address, fire brigade communication, sprinkler, water-flow detectors, fire detection and alarm systems and with a direct telephone connection to the appropriate fire station by-passing the switchboard.


239. Voice communication system.

There shall be two separate approved continuously electrically supervised voice communications systems, one a fire brigade communications system and the other a public address system between the central control station and the following areas:

(a) lifts, lift lobbies, corridors and staircases;

(b) in every office area exceeding 92.9 metres in area;

(c) in each dwelling unit and hotel guest room where the fire brigade system may be combined with the public address system.”


Does My Building Require A PA System?


PA systems are typically found in high-rise condominium units, shopping complexes, train stations, auditoriums and schools. In an emergency, this system is useful for the evacuation of people.


Our M&E Consultant Solutions


As M&E consultants, our solutions for Public Address Systems include:

  • PA System layout design based on Authority requirements and Client’s specification
  • PA System schematic diagram


Perunding JW is an M&E Consulting firm based in Malaysia. If you are looking for more information or resources, reach out to our team of engineers. We will gladly assist you. Visit our homepage or call us at +603 7955 5918.

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