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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Skip to main content. Changing Presets The Preset Indicator on the front panel displays the number of the active preset. Featuring enhancements to a patented Adaptive Notch Filter Algorithm, the DFR22 includes single-channel and shuge processing blocks with up to 16 precision notch filters that automatically seek out and reduce feedback.

Use the DFR22 software to configure the control pins so that they match the attached control hardware. The chart below lists the minimum requirements for running the DFR22 software with dfg22 other applications–including virus protection, firewall, instant messaging, or email–in the background.

See page 8 for the pinout of the RS ports. Please check your local sales tax laws. Processor speed and memory requirements vary, depend-ing on the version of Windows and number of background applica-tions you are running.

The Preset Indicator on the front panel displays the number of the active preset.


DFR22 Audio Processor

You can scroll through all presets stored in the device by pressing the arrow keys on the preset selector. The control pins on the back cfr22 the DFR22 connect to switches, potentiometers, and controller hardware. If a number of hours was specified, each dynamic filter and change to the depth of each fixed filter will be removed that many hours after it is set.

Effects of Notch Filter on Frequency Response. DFR22 Architectural Specs en txt 1. This filter is called a notch filter, since it affects a narrow section of the audio spectrum.

Shure DFR22 Audio Processor DFR22 B&H Photo Video

Although a computer is required to configure the Ddfr22 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. Pressing these buttons locks the filters at their current values. For gain control, use either a potentiometer or two momentary switches one for gain up and one for gain down.

When you are ringing out a system and notice that many frequencies feed back simultaneously, even when you increase the gain slowly, you have reached the point of diminishing returns.

Furnished Accessories Furnished Accessories. Click OK and follow the shurd instructions. In either case, you only need to connect three wires: And ensures that you get the best possible customized processor dff22 your application. Registration allows you to receive information about software updates as they become available.


Block connectors are commonly used with audio installations for connecting audio and control cables. However, if all filters are in use and an additional feedback frequency is detected, the DFR22 replaces the oldest existing dynamic filter with a new filter at a new frequency.

Doing so could damage the equipment. GLX-D Digital features intelligent technology and convenient rechargeable power options for musicians who run their own sound.

Wiring Connectors Figure 8: Mute Control Connections For mute control, use either a latching switch or a monetary switch. They cannot be used to prevent clipping at the output stage of the DFR Once the system stops feeding back, you can further raise the level and repeat the process for additional frequencies. For additional answers or to ask a question, visit our Customer Help center. When setting up a sound system with the DFR22, you can ring out the system by slowly raising the gain while talking into the microphones until the first frequency begins to feed back.

Shure 2 Channel Audio Processor With Feedback Reduction DFR22 | eBay

Disengaging the Auto Clear Function. If the feedback does not stop, the filter depth is increased. You might also be interested in