dbx 411 is an audio processor featuring improved noise reduction, frequency response, and distortion compared to its predecessor models. It is designed for professional audio applications, such as recording and broadcasting, and offers a wide range of features to enhance audio quality and control.

The dbx 411 can be used in both recording and playback modes. In recording mode, it can be used to reduce noise and distortion, and to improve frequency response. In playback mode, it can be used to compensate for frequency response irregularities and to reduce noise.

The dbx 411 has a number of features that make it a versatile tool for audio processing. These features include: