The Shure 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 Drag-And-Drop Software.

The Dfr22 Is Ideal For Installed Sound Reinforcement Applications, Such As Houses Of Worship, Theaters, And Meeting Facilities.

Dfr22 Is Also A Powerful Setup Tool In Live Music Applications. Using The Dfr22’s Drag-And-Drop Graphical User Interface, Processors Can Be Placed Anywhere In The Signal Path.

Frequency Response
20 Hz To 20 Khz +/- 1 Db

Dynamic Range
110 Db Minimum, A-Weighted, 20 Hz To 20 Khz

Sampling Rate
48 Khz

Digital-To-Analog, Analog-To-Digital Conversion
24 Bit

Impedance
Input: 10 Kilohms
Output: 120 Ohms

Input Clipping Level
+24 Dbu Minimum

Output Clipping Level
+24 Dbu
+12 Dbu (With 12 Db Pad)
+6 Dbu (With 18 Db Pad)

Total Harmonic Distortion
< 0.05%, +4 Dbu, 20 Hz To 20 Khz

Propagation Delay From Input To Output
<1.5 Ms

Polarity
Input To Output: Non-Inverting (Inverting Optional)

Operating Voltage
100 To 240 Vac, 50/60 Hz (Auto-Switching), 1 A, Maximum

Maximum Power Drain
45w

Temperature Range
Operating: -7 Degrees To 49 Degrees C (19 Degrees To 120 Degrees F)
Storage: -29 Degrees To 74 Degrees C (-20 Degrees To 165 Degrees F)

Dimensions
482.6 Mm X 247.7 Mm X 44.4 Mm (19 In. X 9.75 In. X 1.75 In.)

Weight
2.83 Kg (6.25 Lbs)