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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

    In typical installations, subwoofers are physically separated from the rest of the speaker cabinets. Because of propagation delay and positioning, their output may be out of phase with the rest of the sound. Consequently, a subwoofer's power amp often has a phase-delay adjustment which may be used improve performance of the system as a whole.

  4. Rotary woofer - Wikipedia

    en.wikipedia.org/wiki/Rotary_woofer

    Since the audio amplifier only changes the pitch of the blades, it takes much less power, per dB of generated acoustic sound level, to drive a rotary woofer than to power a conventional subwoofer, which uses a moving electromagnet (voice coil) placed within the field of a stationary permanent magnet to drive a cone which then displaces air.

  5. Woofer - Wikipedia

    en.wikipedia.org/wiki/Woofer

    A woofer or bass speaker is a technical term for a loudspeaker driver designed to produce low frequency sounds, typically from 20 Hz up to a few hundred Hz. The name is from the onomatopoeic English word for a dog's deep bark, "woof" [1] (in contrast to a tweeter, the name used for loudspeakers designed to reproduce high-frequency sounds, deriving from the shrill calls of birds, "tweets").

  6. The best smart speakers for seniors in 2023 - AOL

    www.aol.com/lifestyle/best-smart-home-speakers...

    It gets even better if you pair a second Studio and then add the Amazon Echo Sub, a robust subwoofer. Now you've got a setup that would rival, if not outright beat, any traditional stereo system.

  7. Low-frequency effects - Wikipedia

    en.wikipedia.org/wiki/Low-frequency_effects

    The bass management in surround sound replay systems is that bass content in the incoming signal, irrespective of channel, should be directed only to loudspeakers capable of handling it. The bass management system may direct bass to one or more subwoofers (if present) from any channel, not simply the content of the LFE channel.

  8. 7.1 surround sound - Wikipedia

    en.wikipedia.org/wiki/7.1_surround_sound

    7.1 surround sound is the common name for an eight-channel surround audio system commonly used in home theatre configurations. It adds two additional speakers to the more conventional six-channel ( 5.1 ) audio configuration.

  9. 5.1 surround sound - Wikipedia

    en.wikipedia.org/wiki/5.1_surround_sound

    The left and right surround speakers in the bottom line create the surround sound effect. 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]