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  2. 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 ...

  3. List of loudspeaker manufacturers - Wikipedia

    en.wikipedia.org/wiki/List_of_loudspeaker...

    PMC speakers: United Kingdom Polk Audio: United States ProAc: United Kingdom PSB Speakers: Canada QSC Audio Products: United States Quad Electroacoustics: United Kingdom (brand) Radio Shack: United States RCF audio: Italy Rectilinear Research Corporation: United States Rega Research: United Kingdom Renkus-Heinz: United States ReVox: Switzerland ...

  4. List of Bose home audio products - Wikipedia

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

    Bose has manufactured speaker systems for computers since 1987. Some models have a powered subwoofer. Bose and Apple Computer partnered and made a snow white edition of the Roommate Powered speakers to accompany the new audio features of the Apple IIGS.

  5. Audio power - Wikipedia

    en.wikipedia.org/wiki/Audio_power

    Audio power is the electrical power transferred from an audio amplifier to a loudspeaker, measured in watts.The electrical power delivered to the loudspeaker, together with its efficiency, determines the sound power generated (with the rest of the electrical power being converted to heat).

  6. Constant-voltage speaker system - Wikipedia

    en.wikipedia.org/wiki/Constant-voltage_speaker...

    Constant-voltage speaker systems are also commonly referred to as 25-, 70-, 70.7-, 100 or 210-volt speaker systems; distributed speaker systems; or high-impedance speaker systems. In Canada and the US, they are most commonly referred to as 70-volt speakers. In Europe, the 100 V system is the most widespread, with amplifier and speaker products ...

  7. One of our most popular items of 2024, AOL readers have ...

    www.aol.com/one-of-our-most-popular-items-of...

    The Qinliaf Extender also detects the kind of device plugged into it and provides the appropriate amount of power, preventing problems with over-voltage. Think about your most-used devices. Think ...

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