A public address installation (PA system) is an audio solution often installed within office buildings, schools, factories, leisure centres or hotels. It is mainly used for voice announcements to different areas (or zones) within a building and in some cases it may also incorporate a background music system. Public Address
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A leisure centre complex is a great example of how a PA system can be used. They tend to have many different areas such as a swimming pool, cardio area, gym and then the bar area. A commercial PA system would be designed so that each area can be addressed individually from a multi zone paging microphone, with its own independent level control. Each zone would also have its own independent source select and volume control, zoning mixers and individual amplifiers, so that you can fully manage what is being heard in what room and at a suitable volume.