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| Sobre o "Audio Power Amplifier" | |||||
| An audio power amplifier is an electronic amplifier that amplifies low-power audio signals to a level suitable for driving loudspeakers and is the final stage in a typical audio playback chain. The preceding stages in such a chain are low power audio amplifiers which perform tasks like pre-amplification, equalization, tone control, mixing/effects, or audio sources like record players, CD players, and cassette players. Most audio power amplifiers require these low-level inputs to adhere to line levels. While the input signal to an audio power amplifier may measure only a few hundred microwatts, its output may be tens, hundreds, or thousands of watts. Applications of Audio Power Amplifier include public address systems, theatrical and concert sound reinforcement systems, Hi-Fi stereo, home-theatre system. Instrument Audio Power Amplifiers including guitar amplifiers and electric keyboard amplifiers. | |||||
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