Description, Packing List, Requirements

ENGLISH

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 X 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 any- where in the signal path.

DFR22 Features

SShure’s patented digital feedback reduction algorithm:

–Now includes stereo DFR processing capability

–New Auto Clear mode clears dynamic filters after a pre- set change or power cycle. Dynamic filters can be auto- matically removed after a specified number of hours.

SConfigurable signal path with drag and drop Windows inter- face. 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.

SPhoenix and XLR connectors for each input and output

SCompatible with USB to serial port converters.

SFront 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.

SThree 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.

SPreset selector and indicator for up to 16 presets

SControl input pins for setting up remote preset, volume, and mute controls

PACKING LIST

SPower Cable

S5-pin DIN ShureLink Cable

S4 Rackmount Screws with Nylon Washers

SFive 3-Pin Block Connector Terminals (for audio input/output and RS–232 communication)

SOne 6-pin Block Connector Terminals (for control inputs)

SOne DFR22 Software CD–ROM and Online User Guide

REQUIREMENTS

Power Requirements

S100–240 Vac, 50/60 Hz

S45 W maximum

Computer Requirements

S20 MB of hard drive space

SCD ROM drive

SRS–232 serial port and cable, or approved USB-to-Serial port adapter*

SVGA monitor with 640 x 480/256 color, or higher resolution

SMouse or other pointing device

NOTE: Processor speed and memory requirements vary, depend- ing on the version of Windows and number of background applica- tions you are running. Operating the DFR22 software simulta- neously with programs such as SIA–Smaartor Gold Line TEFt requires a faster processor and more RAM. 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.

Windows Version	Processor Speed	RAM
98, Second Edition	Pentium 166 MHz	48 MB
NT	Pentium 233 MHz	64MB
ME	Pentium 300 MHz	64 MB
2000 Professional	Pentium 300 MHz	96 MB
XP Professional, Home	Pentium 300 MHz	128 MB

*Most USB-to-serial port adapters work well with the DFR22. To see the latest list of fully approved adapters, visit http://www.shure.com/mixers/models/dfr22.asp

SOFTWARE INSTALLATION

1.Insert supplied CD into your CD-ROM drive and follow the on- screen instructions.

2.If installation does NOT start automatically, click on the [Start] button the the Windows taskbar and select [Run...] from the pop-up menu.

3.Type [D:/setup}, where “D” is your CD-ROM drive letter.

4.Click OK and follow the on-screen instructions.

USING THE DFR22 SOFTWARE

Instructions for the DFR22 software are available in PDF format on the CD-ROM included with the system, or on the Shure web site at www.shure.com.

NOTE: Register this product by filling out and mailing the enclosed registration card, or register online at the Shure web site (www.shure.com). Registration allows you to receive information about software updates as they become available.