X-FDBK: Automatic Feedback Eliminator Plugin by Waves

X-FDBK automatically cuts the frequencies that cause feedback. Its automated setup handles the ring-out process, so one person can run it without a second engineer at the desk.

Up to 20 filters are available to notch feedback frequencies. The plugin automatically optimizes each filter's bandwidth and the amount of cut, so you do not have to set every filter by hand.

Waves says this process lets you regain several dB of extra headroom before feedback occurs, giving you more usable gain from your monitors and PA.

Global filter controls let you compensate for unexpected changes during a show, such as a shift in room acoustics or a different mic position.

The display analyzes incoming audio and overlays the notch filter responses, so you can see which frequencies are being cut and how the filters sit against the incoming signal.