Public Address & Voice Alarm Systems
Public Address & Voice Alarm Systems
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, for example for announcements of movements at large and noisy air and rail terminals. The simplest PA system consist of a microphone, an amplifier, and one or more loudspeakers.Sound source such as compact disc player or radio may be connected to a PA system so that music can be played through the system.