Shure DFR22 2x2 Audio Processor with Notch-Filtered Feedback Suppression (Discontinued)

Availability: Discontinued
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Shure SKU: DFR22
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The following product has been discontinued.


The DFR22 from Shure is a two-input, two-output digital audio processor with feedback reduction. It features a software interface with a drag-and-drop controlled setup and is ideal for installed sound reinforcement applications such as houses of worship, theaters and meeting facilities. The unit is also a powerful setup tool in live music applications.

Using the graphical user interface, processors can be placed anywhere in the signal path. The 2 x 2 matrix mixer allows either or both inputs to be routed to either or both outputs, with additional controls for levels and polarity. The unit stores sixteen presets and provides 24-bit conversion, 48 kHz sampling and a minimum dynamic range of 100 dB.

Filter Type Graphic
Frequency Bands Graphic: 10 and 30
Parametric: 3 to 10 with cut and shelf filters
Bandwidth 10-Band Graphic: 1 octave
30-Band Graphic: 1/3 octave
Parametric: From 1/70 octave through 4 octaves
Number of Channels 2
Inputs 2 x XLR
2 x Phoenix connector
Outputs 2 x XLR
2 x Phoenix connector
Maximum Input Level +24 dBu
Maximum Output Level +24 dBu
Frequency Response 20 Hz to 20 kHz, +/-1 dB
Dynamic Range 110 dB minimum, A-weighted (20 Hz to 20 kHz)
Noise Not specified by manufacturer
Dimensions 19" x 9 3/4" x 1 3/4"
Weight 6.25 lbs
Specialties After the unit is installed and programmed with the software interface, end users can control the DFR22 with a computeror 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.)



Packaging Info
Package Weight 10.35 lb
Box Dimensions (LxWxH) 22.2 x 14.9 x 2.6"


At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.

  • Most in-stock orders placed Monday-Friday before 1PM PST ship the same day. Orders placed after 1PM will ship the next day of business. General restrictions apply; please see our full shipping policy here.
  • We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.

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