preamplifier

noun

pre·​am·​pli·​fi·​er (ˌ)prē-ˈam-plə-ˌfī(-ə)r How to pronounce preamplifier (audio)
: an amplifier designed to amplify extremely weak electrical signals before they are fed to additional amplifier circuits

Examples of preamplifier in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In addition to these new products, Fosi Audio will also be showing off a selection of its popular and recently launched products, including the IM4 in-ear monitors, i5 planar-magnetic headphones, ZH3 balanced DAC / headphone amplifier/preamplifier and K7 hi-fi gaming DAC and headphone amplifier. Mark Sparrow, Forbes.com, 21 Jan. 2026 Even in a more sophisticated hi-fi separates setup, the preamplifier part of proceedings is still often handled out of sight, within the amplifier. Simon Lucas, Wired News, 30 Dec. 2025 Balanced-bridge, dual-mono configuration is employed in all components, and both preamp and phono stage benefit from their power supplies being housed in a separate chassis, preventing interference with the sensitive phono and preamplifier circuits. Robert Ross, Robb Report, 26 Mar. 2025 The new 33 preamplifier’s small size and shape reflects the original, but with more detailing. Mark Sparrow, Forbes, 18 Oct. 2024 The complete re-creation includes the power supply circuitry, a microphone preamplifier, a 10-second ramp generator as an alternate input signal source, and a meter display for comparing the input to the converter’s output, as indicated by a set of five neon lamps. IEEE Spectrum, 25 Jan. 2019

Word History

First Known Use

1934, in the meaning defined above

Time Traveler
The first known use of preamplifier was in 1934

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Cite this Entry

“Preamplifier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/preamplifier. Accessed 27 Jan. 2026.

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