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  2. Bose Corp. v. Consumers Union of United States, Inc.

    en.wikipedia.org/wiki/Bose_Corp._v._Consumers...

    The Court held, on a 6–3 vote, in favor of Consumers Union, the publisher of Consumer Reports magazine, ruling that proof of "actual malice" was necessary in product disparagement cases raising First Amendment issues, as set out by the case of New York Times Co. v. Sullivan (1964). The Court ruled that the First Circuit Court of Appeals had ...

  3. 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 ...

  4. Home cinema - Wikipedia

    en.wikipedia.org/wiki/Home_cinema

    The audio system requires at least a stereo power amplifier and two speakers, for stereo sound; most systems have multi-channel surround sound power amplifier and six or more speakers (a 5.1 surround sound system has left and right front speakers, a centre speaker, left and right rear speakers and a low-frequency subwoofer speaker enclosure ...

  5. Audio power - Wikipedia

    en.wikipedia.org/wiki/Audio_power

    In some cases, an audio device may be measured by the total system power of all its loudspeakers by adding all their peak power ratings. Many home theater in a box systems are rated this way. Often low-end home theater systems' power ratings are taken at a high level of harmonic distortion as well; as high as 10%, which would be noticeable. [21]

  6. Home audio - Wikipedia

    en.wikipedia.org/wiki/Home_audio

    Modern home cinema systems typically augment the audio output from a DVD player or Blu-ray player with a multi-channel power amplifier and anywhere from two speakers and a stereo power amp (for stereo sound) to a 5.1 channel amplifier and five or more surround sound speaker cabinets (with a surround sound system).

  7. Home theater in a box - Wikipedia

    en.wikipedia.org/wiki/Home_theater_in_a_box

    A home theater in a box (HTIB) is an integrated home theater package which "bundles" together a combination DVD or Blu-ray player, a multi-channel amplifier (which includes a surround sound decoder, a radio tuner, and other features), speaker wires, connection cables, a remote control, a set of five or more surround sound speakers (or more ...

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