Definition of preamplifier in English:

Share this entry

preamplifier

Pronunciation: /prēˈampləˌfīər/

noun

An electronic device that amplifies a very weak signal, for example from a microphone or pickup, and transmits it to a main amplifier.
Example sentences
  • This makes it suitable for audio applications, including audio amplifiers and preamplifiers, home entertainment system, mixing desks and audio recording equipment.
  • The microphone signal was amplified by a low-noise preamplifier and was processed by a two-phase lock-in amplifier.
  • Microphone preamplifiers seem to come in two flavors these days: modern designs with lots of bells and whistles (such as EQ, dynamics and A / D converters) and vintage designs, which tend to take a more minimalist approach.

Derivatives

preamplify

verb (preamplifies, preamplifying, preamplified)
Example sentences
  • The photodiode signal was preamplified, digitized, and processed by a computer.
  • The PA signal was preamplified and then analyzed by a lock-in amplifier.
  • All raw myoelectric signals were preamplified.
Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.