Public Address System

Of communication system.   May also be referred to as P.A., P.A. system, PA and PA system.

An electronic amplification system used as a communication system in public areas.

This concept's ID is @1~21961

Loudspeaker

  • loudspeaker 6 facts

    Electro-acoustic transducer that converts electrical signals into sounds loud enough...

  • tannoy 0 facts

    A loudspeaker.

Also contains

  • amplifier 3 facts

    Electronic equipment that increases strength of signals passing through it.