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2. Subwoofer - Wikipedia

   en.wikipedia.org/wiki/Subwoofer

   From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. [9] When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a ...

3. Loudspeaker - Wikipedia

   en.wikipedia.org/wiki/Loudspeaker

   Loudspeaker. The hole below the lowest woofer is a port for a bass reflex system. A loudspeaker (commonly referred to as a speaker or, more fully, a speaker system) is a combination of one or more speaker drivers, an enclosure, and electrical connections (possibly including a crossover network). The speaker driver is an electroacoustic ...

4. Pioneer Corporation - Wikipedia

   en.wikipedia.org/wiki/Pioneer_Corporation

   Pioneer global network. Pioneer Corporation (パイオニア株式会社, Paionia Kabushiki-gaisha), commonly referred to as Pioneer, is a Japanese multinational corporation based in Tokyo, that specializes in digital entertainment products. The company was founded by Nozomu Matsumoto on January 1, 1938 in Tokyo as a radio and speaker repair shop.

5. Soundbar - Wikipedia

   en.wikipedia.org/wiki/Soundbar

   A soundbar, sound bar or media bar is a type of loudspeaker that projects audio from a wide enclosure. It is much wider than it is tall, partly for acoustic reasons, and partly so it can be mounted above or below a display device (e.g. above a computer monitor or under a home theater or television screen). In a soundbar, multiple speakers are ...

6. Home cinema - Wikipedia

   en.wikipedia.org/wiki/Home_cinema

   The most basic and economical system could be a DVD player, a standard-definition (SD) large-screen television with at least a 27-inch (69 cm) diagonal screen size, and an inexpensive home theater in a box surround sound amplifier and speaker system with a subwoofer. A more expensive home cinema set-up might include a Blu-ray disc player, home ...

7. Audio power - Wikipedia

   en.wikipedia.org/wiki/Audio_power

   Audio power. Audio power is the electrical power transferred from an audio amplifier to a loudspeaker, measured in watts. The electrical power delivered to the loudspeaker, together with its efficiency, determines the sound power generated (with the rest of the electrical power being converted to heat). Amplifiers are limited in the electrical ...