The X-FDBK from Waves is a plug-in designed to provide automatic and manual elimination of feedback in a live sound environment, making the essential process of “ringing out” the PA system much more efficient.

In Setup mode, the X-FDBK plug-in will search for feedback. Upon detecting it, X-FDBK will automatically activate and configure filters to cut frequencies at which feedback is occurring. Filters can then be added, removed, and adjusted. Each filter features controls for frequency, cut amount, and Q (bandwidth). The gain and bandwidth for all filters can be adjusted with global controls.