Shure DFR22 Two Channel Feedback Reduction Tool with 16 Automaticaly Adaptive Notch Filters


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Dale #:SHUR-DFR22

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  • 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.

    Full-Featured Processor Power

    The DFR22 has all of the DSP processing you need to ensure the highest quality audio.

    Flexible. Customizable. Configurable.

    Processing blocks in the DFR22 can be applied in any order, to any input or output. You can also link processors for more efficient global control. Copy and paste processing blocks to any input or output to duplicate processors across multiple channels.

    With the DFR22, you can design the entire system, save it to disk, and load it at the job site for easy setup. The DFR22 also allows real-time design changes, so you can add, subtract, or change processing blocks as you tune the system. It makes setup a breeze. And ensures that you get the best possible customized processor for your application. Frequency response and signal levels can be visually monitored in real time as parameters are adjusted.

    Key Features:

    • DFR Automatic Feedback Reduction
    • Parametric and Graphic Equalizers
    • Cut/Shelf Equalizer
    • Compressors/Limiters
    • Automatic Gain Control
    • Gate/Downward Expander
    • Ducker
    • 2-Way Crossover
    • Subwoofer Processor
    • Splitter
    • Delay Processors
    • 2x2 Matrix Mixer
  • Filter TypeGraphic
    Frequency BandsGraphic: 10 and 30
    Parametric: 3 to 10 with Cut and Shelf filters
    Bandwidth10-band graphic: 1 octave
    30-band graphic: 1/3 octave
    Parametric: From 1/70 octave through 4 octaves
    Number of Channels2
    Inputs2 x XLR
    2 x Phoenix connector
    Outputs2 x XLR
    2 x Phoenix connector
    Maximum Input Level+24dBu
    Maximum Output Level+24dBu
    Frequency Response20Hz to 20kHz, +/-1dB
    Dynamic Range110dB minimum, A-weighted (20Hz to 20kHz)
    NoiseNot specified by manufacturer
    Dimensions (WxDxH)19" x 9 3/4" x 1 3/4"
    Weight6.25 lbs
    SpecialtiesAfter the unit is installed and programmed with the software interface, end users can control the DFR22 with a computer or an AMX or Crestron controller.Up to sixteen devices (including the DFR22, DFR11EQ, DP11EQ, P4800 and UA888 can be linked and controlled from one computer using Shure Link.
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