noun
- an electronic device that amplifies weak signals before they are sent to a main amplifier
Usage: electronics
Examples
- The preamplifier boosts the microphone signal before it reaches the main amplifier.
- Connect your turntable to the preamplifier first.
- The guitar’s built-in preamplifier helps shape the tone.
- A good preamplifier reduces noise in the audio signal.
- The recording studio uses a high-quality preamplifier for vocals.
- Check if your receiver has a phono preamplifier built in.