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The x fdbk Black Friday deal from Waves takes 46% off this automatic feedback eliminator for live sound, bringing it to $79.99 until Nov 26, 2026.
X-FDBK is an audio restoration plugin built to stop feedback in live shows. It finds the frequencies that cause the howl and notches them out for you.
The maker says it cuts down setup time a lot, and that it works in a set-it-and-forget-it way.
The plugin listens to incoming audio and identifies the main frequencies that trigger feedback. It then places notch filters on them automatically, so you can stop chasing rings and get on with mixing.
Waves describes it as a way to ring out the PA quickly and accurately. Because the plugin handles setup on its own, a single person can get it done. That means more level out of your monitors and PA before things start to ring.
Because the bandwidth and the depth of each cut are set automatically, you are not hand-tuning every notch. If conditions shift during a show, the global filter controls let you adjust to the change.
X-FDBK is a plugin, so it loads in your host or console-side plugin chain in the formats below.
The on-screen display shows what is coming in and draws the notch filter responses over it. You can see where the plugin has placed each cut as it works.
Waves says the result is clearer, louder, feedback-free sound from your monitors and PA. The target is the live rig, where feedback bothers the audience, the performers and the engineer alike.
Yes. The X-FDBK Black Friday deal takes 46% off, bringing the plugin to $79.99. The offer ends Nov 26, 2026. X-FDBK is Waves' automatic feedback eliminator for live sound.
X-FDBK listens for the pitches that start to ring and cuts each one with a narrow notch, all without manual input. The maker says it helps you ring out the PA quickly and accurately, and that one person can run the automated setup.
Up to 20 filters are available to notch feedback frequencies. The plugin optimizes the bandwidth and the amount of cut for you, and global filter controls let you compensate for unexpected changes.
X-FDBK comes as VST, AU and AAX on Mac (macOS Monterey 12, Ventura 13, Sonoma 14, Sequoia 15). On Windows 10 or later it comes as VST and AAX.
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