Behringer FBQ1000 Feedback DestroyerFEEDBACK DESTROYER FBQ1000 The FBQ1000 Feedback Destroyer is the fastest feedback suppressor on the market, with a response time of less than 0. 2 seconds. Whether you use it to kill feedback dead in its tracks for your mains and or monitors, or as a sophisticated parametric equalizer to fine tune the acoustics of your next gig, the FBQ1000 will bring a new level of finesse to your sound. And if you use in ear monitors, the FBQ1000 is a must have to