Category:Sound/Amplifiers

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An audio power amplifier is an electronic amplifier that amplifies low-power audio signals (signals composed primarily of frequencies between 20 - 20 000 Hz, the human range of hearing) to a level suitable for driving loudspeakers. It is the final electronic stage in a typical audio playback chain.

For more information on amplifiers in general, consult other sources, such as Audio power amplifier on Wikipedia.

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