an amplifier designed to increase the power of an electrical signal to the level required to drive a device or circuit, esp. a speaker.
单词 | θ65587 |
释义 | the world > physical sensation > hearing and noise > audibility > sound magnification or reproduction > [noun] > amplifier (10) power amplifier1920 an amplifier designed to increase the power of an electrical signal to the level required to drive a device or circuit, esp. a speaker. buffer amplifier1933 (see quot. 1938). preamplifier1934 An amplifier designed to amplify a very weak signal (as from a microphone, pickup, etc.) and deliver it to another amplifier for further… amp1945 An amplifier, esp. for an electric guitar. power amp1947 = power amplifier n. logarithmic amplifier1954 Of or pertaining to logarithms. Also in logarithmic sine, tangent, secant, etc., used (somewhat incorrectly) to denote the logarithm of the… preamp1955 = preamplifier, n. head1968 An amplifier unit (esp. one used to amplify an electric guitar) which does not contain a speaker, and is connected to one or more separate speaker… Subcategories:— preamplification (1) — controls of (1) |
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