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  2. Public address system - Wikipedia

    en.wikipedia.org/wiki/Public_address_system

    All PA systems have the potential for audio feedback, which occurs when a microphone picks up sound from the speakers, which is re-amplified and sent through the speakers again. It often sounds like a loud high-pitched squeal or screech, and can occur when the volume of the system is turned up too high.

  3. Thiele/Small parameters - Wikipedia

    en.wikipedia.org/wiki/Thiele/Small_parameters

    The 1925 paper [1] of Chester W. Rice and Edward W. Kellogg, fueled by advances in radio and electronics, increased interest in direct radiator loudspeakers. In 1930, A. J. Thuras of Bell Labs patented (US Patent No. 1869178) his "Sound Translating Device" (essentially a vented box) which was evidence of the interest in many types of enclosure design at the time.

  4. Tannoy - Wikipedia

    en.wikipedia.org/wiki/Tannoy

    Tannoy is notable for its 'Dual Concentric' speaker design, which places the tweeter behind the centre of the medium or bass driver. "Dual Concentric" is a trademark although Tannoy is not the only speaker manufacturer to design coaxial speakers. Home and Studio speakers: Cheviot Series; Reveal Series (Made in China) Plus Series; 70Anniversary ...

  5. What 'secret' loudspeaker codes mean at department stores - AOL

    www.aol.com/news/2010-10-13-what-secret...

    If you've been shopping in a big box retail store you've probably heard an announcement on the loudspeaker such as, "code yellow toys, code yellow toys." This "code" is one of many innocuous ...

  6. Loudspeaker enclosure - Wikipedia

    en.wikipedia.org/wiki/Loudspeaker_enclosure

    MTX Audio loudspeaker enclosures (with rear panel reflex port tubes) which can mount 15-inch woofers, mid-range drivers and horn and/or compression tweeters. In this photo, only one driver is mounted. A cabinet with loudspeakers mounted in the holes. Number 1 is a mid-range driver. Number 2 is a high-range driver.

  7. Line array - Wikipedia

    en.wikipedia.org/wiki/Line_array

    A line array is a loudspeaker system that is made up of a number of usually identical loudspeaker elements mounted in a line and fed in phase, to create a near-line source of sound. The distance between adjacent drivers is close enough that they constructively interfere with each other to send sound waves farther than traditional horn-loaded ...

  8. Loudspeaker - Wikipedia

    en.wikipedia.org/wiki/Loudspeaker

    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 transducer [1]: 597 that converts an electrical audio signal into a corresponding sound. [2]

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