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  2. 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 One 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.

  3. NAD 3020 - Wikipedia

    en.wikipedia.org/wiki/NAD_3020

    NAD 3020 integrated amplifier. The NAD 3020 is a stereo integrated amplifier by NAD Electronics, considered to be one of the most important components in the history of high fidelity audio. [1] Launched in 1978, this highly affordable product delivered a good quality sound, which acquired a reputation as an audiophile amplifier of exceptional ...

  4. Dumble Amplifiers - Wikipedia

    en.wikipedia.org/wiki/Dumble_Amplifiers

    Thus Dumble amplifiers are the most expensive boutique amplifiers on the used market [3] and prices have risen rapidly. In 2012, Vintage Guitar magazine said the Dumble Overdrive Special is the most valuable in the product line, with used amplifiers fetching between $70,000 and $150,000. [4] Other models have sold for more. [5]

  5. Technics (brand) - Wikipedia

    en.wikipedia.org/wiki/Technics_(brand)

    SB-10000 Loudspeaker: Top of the line Technics speaker at a cost of US$12,000. They featured a tweeter made of boron. A used pair sold for US$32,050 around 2010 in Germany. SE-A1 Amp: Top of the line Technics amp at a cost of US$6,000. SU-A2 Pre-Amp: Top of the line for Technics at a cost of US$8,000.

  6. Regenerative circuit - Wikipedia

    en.wikipedia.org/wiki/Regenerative_circuit

    A receiver circuit that used larger amounts of regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was also invented by Armstrong in 1922. [ 11 ] [ 5 ] : p.190 It was never widely used in general commercial receivers, but due to its small parts count it was used in specialized applications.

  7. AV receiver - Wikipedia

    en.wikipedia.org/wiki/AV_receiver

    An audio/video receiver (AVR) or a stereo receiver is a consumer electronics component used in a home theater, home audio, or hi-fi system. Its purpose is to receive audio and video signals from a number of sources, and to process them and provide power amplifiers to drive loudspeakers , and/or route the video to displays such as a television ...