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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. Audio power amplifier - Wikipedia

    en.wikipedia.org/wiki/Audio_power_amplifier

    Audio stereo power amplifier made by McIntosh The internal view of a Mission Cyrus 1 Hi Fi integrated audio amplifier (1984) [1]. An audio power amplifier (or power amp) amplifies low-power electronic audio signals, such as the signal from a radio receiver or an electric guitar pickup, to a level that is high enough for driving loudspeakers or headphones.

  4. Amplifier - Wikipedia

    en.wikipedia.org/wiki/Amplifier

    An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude (magnitude of the voltage or current) of a signal applied to its input ...

  5. Distribution amplifier - Wikipedia

    en.wikipedia.org/wiki/Distribution_amplifier

    An audio distribution amplifier also known as: a press feed; a pool feed; a media feed; press box; or an ADA, takes a single audio feed, usually a line input, but it may be a microphone input, and outputs multiple line or microphone outputs. This can be done using a passive feed, where the signal is split among the outputs, or as an active feed ...

  6. Operational amplifier - Wikipedia

    en.wikipedia.org/wiki/Operational_amplifier

    An operational amplifier (often op amp or opamp) is a DC-coupled electronic voltage amplifier with a differential input, a (usually) single-ended output, [1] and an extremely high gain. Its name comes from its original use of performing mathematical operations in analog computers .

  7. Gain (electronics) - Wikipedia

    en.wikipedia.org/wiki/Gain_(electronics)

    An amplifier has an input impedance of 50 ohms and drives a load of 50 ohms. When its input ) is 1 volt, its output is 10 volts. What is its voltage and power gain? ...

  8. Vox AC30 - Wikipedia

    en.wikipedia.org/wiki/Vox_AC30

    As the amp is designed to replicate May's tone, there are no controls on the amp except for a single volume control, though a switch enables the user to halve the number of output valves (therefore reducing the output to 15 watts as well as the volume, making it more suitable for home use), and there is a boost function operated from the ...

  9. Deezer - Wikipedia

    en.wikipedia.org/wiki/Deezer

    In the US, Deezer HiFi offers 36 million tracks of 16-Bit/44.1 kHz of FLAC quality music for a $19.95 monthly subscription. It is "Only available on selected soundsystems and the Desktop App," and offers downloads to phones at 320 kbit/s. [40]

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