Description
The DFR22 Audio Processor with Feedback Reduction is a 2 input, 2 output digital audio processor. It is designed to equalize sound system response, provide dynamics processing and alignment delay, and automatically detect and control acoustic feedback. A built-in 2×2 matrix mixer allows either or both inputs to be routed to either or both outputs, with additional controls for levels and polarity.
The DFR22 is ideal for installed sound reinforcement applications, such as houses of worship, theaters, and meeting facilities. It 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.
DFR22 Features:
Shure’s patented digital feedback reduction algorithm:
Now includes stereo DFR processing capability
New Auto Clear mode clears dynamic filters after a preset change or power cycle. Dynamic filters can be automatically removed after a specified number of hours.
Configurable signal path with drag and drop Windows interface. Includes graphic and parametric EQ, up to 10 seconds of delay, compression, limiting, gating, automatic gain control, ducking, and a fully configurable two-way crossover.
Phoenix and XLR connectors for each input and output
Compatible with USB to serial port converters
Front and back panel RS232 ports:
3-pin Phoenix connector on back panel
DB9 connector on front panel; requires only TX, RX, and GND to be connected
Three pre-loaded presets:
Preset 1: Two mono 16 filter DFRs
Preset 2: A stereo 16 filter DFR
Preset 3: A mono 16 filter DFR on each input. Each input is routed to each output.
Preset selector and indicator for up to 16 presets
Control input pins for setting up remote preset, volume, and mute controls
