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  2. Yorkville Sound - Wikipedia

    en.wikipedia.org/wiki/Yorkville_Sound

    The portable mixer-amplifier concept was a novel idea that quickly proved popular among musicians, and was the inspiration for the 1967 introduction of the competing "Vocal Master" product line by Shure. [15] In 1967, Yorkville expanded distribution westward to Vancouver and southward into the United States via Buffalo, New York. [15]

  3. ESS Technology - Wikipedia

    en.wikipedia.org/wiki/ESS_Technology

    ESS Technologies was founded in 1983 as Electronic Speech Systems, by Professor Forrest Mozer, a space physicist at the University of California, Berkeley and Todd Mozer, Forrest Mozer's son, and Joe Costello, the former manager of National Semiconductors Digitalker line of talking chips.

  4. Roland D-05 - Wikipedia

    en.wikipedia.org/wiki/Roland_D-05

    The Roland D-05 is a synthesizer first manufactured in 2017. It is a smaller version of the Roland D-50 which was produced in 1987. [1] [2] The D-05 is part of the Roland's Boutique range of new and recreated synths.

  5. To Find the Best Portable Speakers, Our Editors Tested These ...

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  6. Megaphone - Wikipedia

    en.wikipedia.org/wiki/Megaphone

    A megaphone, speaking trumpet, bullhorn, blowhorn, or loudhailer is usually a portable or hand-held, cone-shaped acoustic horn used to amplify a person's voice or other sounds and direct it in a given direction. The sound is introduced into the narrow end of the megaphone, by holding it up to the face and speaking into it, and the sound waves ...

  7. Powered speakers - Wikipedia

    en.wikipedia.org/wiki/Powered_speakers

    An active full-range loudspeaker. Powered speakers, also known as self-powered speakers and active speakers, are loudspeakers that have built-in amplifiers.Powered speakers are used in a range of settings, including in sound reinforcement systems (used at live music concerts), both for the main speakers facing the audience and the monitor speakers facing the performers; by DJs performing at ...