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A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music.
A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience. [1] [2] In many situations, a sound reinforcement system is also ...
The term backline is used in popular music and sound reinforcement system contexts to refer to electronic audio amplification equipment and speaker enclosures that are placed behind the band or the rhythm section on stage, including amplifiers and speaker cabinets for guitars, bass guitars and keyboards. Such equipment is often rented or leased ...
The loudspeaker system was invented. That meant that producers didn’t have to pay for the rare person with both announcing skills and a loud voice. Now all they needed was a person who could ...
Many hospital and healthcare systems still use physician assistant as titles, with some just resorting to using "PA" to avoid confusion with physicians. A physician assistant may use the initials "PA", "PA-C", "APA-C", "RPA" or "RPA-C", where the "-C" indicates "Certified" and the "R" indicates "Registered".
Justin Heinze, Patch Staff. Posted Fri, Jan 22, 2021 at 12:21 pm ET. A new tax filing system launched by Pennsylvania allows residents to file their state taxes for free. (Shutterstock ...