What device is used to reduce the amplitude of an audio signal?

The audio attenuator is specifically designed to reduce the amplitude of an audio signal without significantly altering its quality. It functions by allowing you to adjust the level of the signal coming through, which can be crucial in various audio applications, including mixing and broadcasting. An attenuator typically consists of resistors that diminish the signal strength, making it ideal for managing levels and preventing distortion.

In contrast, while an equalizer modifies the frequency response of an audio signal, it does not primarily focus on reducing amplitude. A microphone booster is meant to increase the strength of a microphone's signal, helping to ensure that signals are strong enough for processing. An amplifier enhances the amplitude of audio signals rather than reducing them, making it fundamentally different from an attenuator. Thus, the choice of the audio attenuator is crucial for controlling audio levels effectively in a variety of audio setups.