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Audio Amplifiers and Preamplifiers Information - …
https://www.globalspec.com/learnmore/sensors_transducers_detectors/acoustic_audio_equipment/audio_amplifiers_preamplifiers
Audio amplifiers and audio preamplifiers are used to increase the amplitude of sound signals. Preamplifiers or preamps are designed to amplify low-level signal from a high-impedance device such as a microphone or instrument pick-up.
Audio Amplifiers | Encyclopedia.com
https://www.encyclopedia.com/politics/encyclopedias-almanacs-transcripts-and-maps/audio-amplifiers
Any electronic device that increases the power of an electrical signal whose vibrations are confined to the audio frequency range — the range that can be perceived by the human ear — is an audio amplifier. All devices that transmit, record, or otherwise electronically process voice signals employ audio amplifiers.
Amplifiers - Learn About Electronics
https://www.learnabout-electronics.org/Amplifiers/amplifiers10.php
Audio voltage amplifiers are used to amplify the low level signals from microphones, tape and disk pickups etc. With extra circuitry they also perform functions such as tone correction equalisation of signal levels and mixing from different inputs, they generally have high voltage gain and medium to high output resistance.
Best stereo amplifiers 2022: the best integrated amps for ...
https://www.whathifi.com/us/best-buys/hi-fi/best-stereo-amplifiers
Cambridge Audio CXA81. An exceptional performer for the money, packed with top …
How Amplifiers Work | HowStuffWorks
https://electronics.howstuffworks.com/amplifier.htm
When people refer to "amplifiers," they're usually talking about stereo components or musical equipment. But this is only a small representation of the spectrum of audio amplifiers. There are actually amplifiers all around us. You'll find them in televisions, computers, portable CD players and most other devices that use a speaker to produce sound.
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