The DFR22 from Shure is a two-input, two-output digital audio processor with feedback reduction. It features a software interface with “drag and drop” controlled. Buy Shure DFR22 Audio Processor with Feedback Reduction – A Versatile and Powerful 2×2 Processor: Studio Recording Equipment – ✓ FREE. Only at Sweetwater! ✅ 0% Financing, ✅ FREE Tech Support, and ✅ FREE Warranty for your Shure DFR22!.

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The audio signal going to Input 1 is analyzed and filtered by a feedback reducer using up to 16 notch filters, and is then routed to Output 1. By default, the DFR22 saves all feedback filters during a preset change or power cycle. 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.

International orders are processed the next shipping day. Available Variants Available Variants. Put Rhythm In Your Routine Shure Wireless Sound Isolating Earphones block distractions with a comfortable, secure fit to keep music in your ears and puts rhythm in your routine. Each time the DFR22 detects a feedback frequency, it assigns that frequency to one of the filters. You should leave some filters available to catch feedback that might occur later, when the sound system is in use.

The Preset Indicator on the front panel displays the number of the active preset. Be the first to review this item. Figure 15 shows an example of how to connect either a latching switch or a monetary switch to the Control Input dfr22 to mute an input or an output.

General Description

After the unit is installed and programmed with the software interface, shyre users can control the DFR22 with a computeror an AMX or Crestron controller. Preset Control Connections Various types of control hardware xhure be connected to the Control Input pins, as shown in Figure The DFR22’s feedback reduction algorithm can be used sjure a tool during system setup and for peace of mind ffr22 unexpected feedback. Doing so could damage the equipment.


Pin outs for a 9-pin RS cable are shown in Figure 10 and listed in Table 1. Reviews 0 Write a review ybyzzfbdfctfcutf. Frequency response and signal levels can be visually monitored in real time as parameters are adjusted. Get version Contact Us. Find your service and fdr22 in your country here. The DFR22 from Shure is a two-input, two-output digital audio processor with feedback reduction.

It makes setup a breeze. User access can be completely restricted so that the user cannot change any settings, or use the front panel controls. This makes the software incredibly easy to learn, because the interface seems immediately familiar to sound professionals.

Dvr22 allocating control pins, you should first determine which pins are to be used for preset control. GLX-D Digital features intelligent technology and convenient rechargeable power options for musicians who run their own sound. The preset indicator will display a flashing [-h]. Our experts offer industry-proven tips and tricks to help you get the most from your gear. Figure 17 shows a typical connection between two momentary switches and the Control Input pins.

For live professional DJ mixing: Similar to Preset 1, except both inputs are routed to both outputs. Configurable signal path with drag and drop Windows interface. When the level of a sound system is increased, the frequencies at which peaks occur will be the first to exceed the feedback threshold.

Preset selector and indicator for up to 16 presets Control input pins for setting up remote preset, volume, and mute controls.

Disengaging the Auto Clear Function.

Now includes stereo DFR processing capability New Auto Clear mode clears dynamic filters after a preset change or power cycle. Premium Closed-Back Headphones deliver world-class audio performance, comfort and durability to professional engineers, musicians and audiophiles.

Shure Publications | User Guides | DFR22

However, you can configure the device to automatically remove dynamic feedback filters and changes to the depth of fixed feedback filters, according to parameters that you specify. To see the latest list of fully approved adapters, visit http: The unit is also a powerful setup tool in live music applications.


Although a computer is required to configure the DFR22’s equalizers, dynamics processors, delays, and crossover, you can use the DFR22 “out of the box” as an automatic feedback reducer, without connecting it to a computer. When this DIP switch is in the “Unlock” position, all front panel controls are enabled. Refer to Table 2 for Device ID settings. Any remaining pins can then be used to adjust gain or to mute channels.

Signal going into each input is analyzed independently, but the feedback reducer applies the same notch filters to each channel. If you do not press the LOAD button, the preset will not change and the display will return to the original Live preset. Audio Connections Audio will pass from the inputs to the outputs, even if it has not yet been configured through the computer interface. The chart below lists the minimum requirements for running the DFR22 software with no other applications–including virus protection, firewall, instant messaging, or email–in the background.

For example, if you have five filters set, Auto Clear will designate those as fixed and will designate the remaining 11 filters as dynamic. To establish the Auto Clear function, proceed as follows:. Typically, you can raise the gain dB above the level at which feedback first occurred.

The unit stores sixteen presets and provides bit conversion, 48 kHz sampling and a minimum dynamic range of dB. Processing blocks in the DFR22 can be applied in any order, to any input or output. It is also a powerful setup tool in live music applications. And ensures that you get the best possible customized processor for your application.