What Is an Acoustic Amplifier?

Audio amplifiers are also known as "audio amplifiers" and "low-frequency amplifiers." Amplifier used to enhance the strength of audio electrical signals.

Main technical requirements: within a certain frequency range, the frequency response is flat, the nonlinear distortion is small, the noise is low, and it has a certain magnification or power output.
Used in telephone, radio, recording, sound amplification and other equipment. [1]

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