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2. 5.1 surround sound - Wikipedia

   en.wikipedia.org/wiki/5.1_surround_sound

   5.1 surround sound ("five-point one") is the common name for surround sound audio systems. 5.1 is the most commonly used layout in home theatres. [1] It uses five full-bandwidth channels and one low-frequency effects channel (the "point one"). [ 2 ]

3. List of Bose home audio products - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_home_audio...

   The 3-2-1 was replaced by the "321 Series II" in 2004, which included two small speakers and a subwoofer. [4] The 321 Series II was praised for its performance for movies, but was criticized for its performance with music and for lacking a HDMI connection. The 321 Series II GS had similar outcomes, however it was also criticised for value for ...

4. Surround sound - Wikipedia

   en.wikipedia.org/wiki/Surround_sound

   In the original movie theater implementation, the LFE was a separate channel fed to one or more subwoofers. Home replay systems, however, may not have a separate subwoofer, so modern home surround decoders and systems often include a bass management system that allows bass on any channel (main or LFE) to be fed only to the loudspeakers that can ...

5. Soundbar - Wikipedia

   en.wikipedia.org/wiki/Soundbar

   The soundbar contained four 3-inch full range drivers and two 1-inch tweeters while the subwoofer housed one 8-inch dual voice coil driver. It used Altec Lansing's side-firing technology and algorithms to provide surround sound from the sides, rear and front. This configuration eliminated the wiring of separate speakers and the space they would ...

6. 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 ...

7. 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 ...