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Audio Amplifier

Audio Amplifier

An audio power amplifier (or power amp) is an electronic amplifier that amplifies low-power electronic audio signals (signals composed primarily of frequencies between 20 - 20 000 Hz, the human range of hearing) to a level that is strong enough for driving loudspeakers and making the signal–whether it is recorded music or a live speech–audible to listeners. It is the final electronic stage in a typical audio playback chain before the signal is sent to the loudspeakers.

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