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  2. Public address system - Wikipedia

    en.wikipedia.org/wiki/Public_address_system

    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.

  3. Sound reinforcement system - Wikipedia

    en.wikipedia.org/wiki/Sound_reinforcement_system

    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 ...

  4. Backline (stage) - Wikipedia

    en.wikipedia.org/wiki/Backline_(stage)

    Backline (stage) Canadian band Bedouin Soundclash performing. The backline gear, including an 8x10" bass speaker cabinet, drums, and several powerful guitar amps, can be seen behind the two musicians in the front of the stage. The term backline is used in popular music and sound reinforcement system contexts to refer to electronic audio ...

  5. Personal assistant - Wikipedia

    en.wikipedia.org/wiki/Personal_assistant

    An assistant helps with time and daily management, of meetings, correspondence, and note-taking. The role of a personal assistant can be varied, such as answering phone calls, taking notes, scheduling meetings, emailing, texts, etc. In business or personal contexts, assistants are people who provide services that relieve his or her employer ...

  6. Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania

    Pennsylvania ( / ˌpɛnsɪlˈveɪniə / ⓘ, lit. 'Penn's forest country' ), officially the Commonwealth of Pennsylvania [b] ( Pennsylvania Dutch: Pennsylvanie ), [7] is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States.

  7. Tannoy - Wikipedia

    en.wikipedia.org/wiki/Tannoy

    Actor Cyril Ritchard and three young women listen to the Tannoy public address system in 1948. Professional studio monitor Little Gold Monitor (c. 1990) with two-way-coaxial construction, meaning the tweeter for frequencies from 1.400 Hz and above is located independently in the center of the 30 cm bass driver.

  8. Physician assistant - Wikipedia

    en.wikipedia.org/wiki/Physician_assistant

    A Physician Assistant or Physician Associate ( PA) is a type of healthcare professional. While these job titles are used internationally, there is significant variation in training and scope of practice from country to country, and sometimes between smaller jurisdictions such as states or provinces. Depending on location, PAs practice semi ...

  9. Performance appraisal - Wikipedia

    en.wikipedia.org/wiki/Performance_appraisal

    Performance appraisal. A performance appraisal, also referred to as a performance review, performance evaluation, [1] (career) development discussion, [2] or employee appraisal, sometimes shortened to "PA", [a] is a periodic and systematic process whereby the job performance of an employee is documented and evaluated.

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