noun
- an electronic device that amplifies weak electrical signals before they are sent to a main amplifier
Usage: electronics; audio equipment
Examples
- The guitar needs a preamp to boost the signal before it reaches the main amplifier.
- Make sure the preamp is turned on before you start recording.
- The microphone preamp improved the sound quality significantly.
- He adjusted the settings on his preamp to reduce background noise.
- The mixing board has built-in preamps for each channel.
- Without a preamp, the signal from the turntable was too weak.