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  2. Public address system - Wikipedia

    en.wikipedia.org/wiki/Public_address_system

    A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music.

  3. Speaker wire - Wikipedia

    en.wikipedia.org/wiki/Speaker_wire

    Speaker wire is a passive electrical component described by its electrical impedance, Z. The impedance can be broken up into three properties which determine its performance: the real part of the impedance, or the resistance, and the imaginary component of the impedance: capacitance or inductance. The ideal speaker wire has no resistance ...

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    Raycon has an amazing selection of best selling earbuds, headphones and more which rival the most popular brands — but best of all, they’re significantly less expensive. And right now, you can ...

  5. Wireless speaker - Wikipedia

    en.wikipedia.org/wiki/Wireless_speaker

    Wireless speaker. A JBL Flip 3 battery-powered and waterproof Bluetooth speaker connected to a charging cable. The length is ca. 17 cm, diameter 6.4 cm, weight 450 g. TV set (size 55 inch) with two Sonos Play:5 wireless HiFi speakers (WiFi-based) and a soundbar. Wireless speakers are loudspeakers that receive audio signals using radio frequency ...

  6. IP code - Wikipedia

    en.wikipedia.org/wiki/IP_Code

    IP code. The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical ...

  7. Stage monitor system - Wikipedia

    en.wikipedia.org/wiki/Stage_monitor_system

    A stage monitor system is a set of performer-facing loudspeakers called monitor speakers, stage monitors, floor monitors, wedges, or foldbacks on stage during live music performances in which a sound reinforcement system is used to amplify a performance for the audience. The monitor system allows musicians to hear themselves and fellow band ...

  8. Twisted pair - Wikipedia

    en.wikipedia.org/wiki/Twisted_pair

    A twisted pair can be used as a balanced line, which as part of a balanced circuit can greatly reduce the effect of noise currents induced on the line by coupling of electric or magnetic fields. The idea is that the currents induced in each of the two wires are very nearly equal. The twisting ensures that the two wires are on average the same ...

  9. Full-range speaker - Wikipedia

    en.wikipedia.org/wiki/Full-range_speaker

    A full-range loudspeaker drive unit is defined as a driver which reproduces as much of the audible frequency range as possible, within the limitations imposed by the physical constraints of a specific design. The frequency range of these drivers is maximized through the use of a whizzer cone and other means. Most single driver systems, such as ...

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