audio-frequency amplifier

audio-frequency amplifier

[′ȯd·ē·ō ¦frē·kwən·sē ¦am·plə‚fī·ər]
(electronics)
An electronic circuit for amplification of signals within, and in some cases above, the audible range of frequencies in equipment used to record and reproduce sound. Also known as audio amplifier.
References in periodicals archive ?
When the guitar is plugged into an amplifier, the electrical signals generated are boosted by an audio-frequency amplifier and sent to a loudspeaker.
For the audio-frequency amplifier, AM-1780C/VRC, NSN 5996-01-520-5679, you need mounting hardware.