Shure DFR22 Two Channel Audio Processor & Feedback Reduction System

ITEM #: DFR-22 MFG #: DFR-22

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DFR-22 - Overview

Two Channel Audio Processor & Feedback Reduction System

Two Channels. A Powerful Processor. Shure's DFR has quickly become the industry standard for effective feedback reduction. The DFR22 builds on that reputation to provide an affordable full-featured 2x2 audio processor with Shure's drag-and-drop software. It's much more than feedback reduction. For many jobs, it's the only audio processor you'll need.

The primary interface for the DFR22 is a Windows-based software program that mimics the functional block diagrams used in sound system design. Unlike many other DSP products that constrict freedom with preset templates, the processing blocks in the DFR22 can be applied in any order, to any input or output. Processing blocks can be copied and pasted to duplicate processors across multiple channels. They can also be linked for more efficient stereo or global control.

The Shure DFR Difference. Featuring enhancements to Shure's patented Adaptive Notch Filter Algorithm, the DFR22 includes single-channel and stereo processing blocks with up to 16 precision notch filters that automatically seek out and reduce feedback. With widths between 1/10 and 1/70 of an octave, these adaptive filters affect only the problem frequencies, maximizing system stability and sound integrity. In addition, Auto Clear mode removes dynamic filters and restores the DFR to your ideally-tuned configuration after a specified amount of time. The DFR22 has all of the DSP processing you need to ensure the highest quality audio.

With the DFR22, the entire system can be designed, saved to disk, and loaded at the job site for easy set up. The DFR22 also allows real-time design changes, so processing blocks can be added, removed or changed during system tuning. The security options allow complete lock of the system to prevent undesired tampering or to restrict user access to certain parts of the system. Control input pins allow connection of potentiometers, contact closures, and Shure's DRS10 for remote control of preset changes, volume, and muting.

DFR-22 - Required Accessories

    DFR-22 - Recommended Accessories

    California Residents:
    Cancer and Reproductive Harm -