An amplifier that is used before the main amplifier in a system. Usually this is an amplifier that takes microphone level signals and brings them up to line levels.
a signal boosting device.
A device that boosts a microphone and/or instrument signals to "line level" for input into recording equipment, effect processors and other devices.
An amplifier that is used to boost a low level signal up to line level (approx. up 60dBv).
An amplifier whose primary function is boosting or amplifying the output of a low level audio-frequency source, (such as a microphone), so that the signal may be further processed without appreciable degradation of the signal-to-noise ratio of the system. An amplifier which increases electrical signals from a microphone or other instrument to a level usable by a power amplifier. Preamp levels are approximately 1 volt.
Preamplifier. An electronic circuit that raises a weak signal high enough to be fed into an amplifier.
Multiple meanings, but in hi-fi generally refers to a separate section of circuitry that includes source switching, volume and balance controls (as well as tone controls in many cases). Used to raise the level from tape decks, turntables, CD players and other music sources to a level suited to the power amplifier
a device that amplifies the signal from your guitar to make it strong enough to be usable by the computer
An electrical device that boosts the level of a mic signal for recording or processing.
A stage in an amplifier that raises the signal of a low-level source (such as a guitar) so that it may be further processed.
A small device used to match the impedance of a pickup with that of an amp or PA. Often, a preamp is also used to boost the signal-strength, resulting in more volume.
an electronic device designed to amplify extremely weak electrical signals before they are fed to additional (usually more powerful) amplifier circuits; any such signal-boosting device; short for "preamplifier".
Preamplifier, an amplifier that comes before another main amplifier. It usually powers the microphone.