Shure DFR22 Audio Processor
The Shure DFR Difference.
Featuring enhancements to a 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.
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
Specifications:
- 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 kΩ
- Output: 120 Ω
- 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: 100-240 Vac, 50/60 Hz (auto-switching), 1 A, maximum
- Maximum Power Drain: 45W
- Temperature Range:
- Operating: -7° to 49° C (19° to 120° F)
- Storage: -29° to 74° C (-20° to 165° 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)
