Shure DFR22 Audio Processor

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)