![]() ![]() PA systems are used in any public venue that requires that an announcer, performer, etc. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music. Howard using a public address system to address the crew of USS Wasp (LHD-1) in 2009Ī public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. ![]() Navy Rear Admiral (lower half) Michelle J.
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