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ENGLISH

9

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 k

Output: 120 

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.)
(See Figure 18)

Weight

2.83 kg (6.25 lbs)

Furnished Accessories

Power Cable (DFR22)

95

B

8389

. . . . . . . . . . . . . . . . . . . . . . . . 

Power Cable (DFR22E)

95

C

8247

. . . . . . . . . . . . . . . . . . . . . . . 

5-pin DIN Shure Link Cable

95

B

8676

. . . . . . . . . . . . . . . . . . . . 

Hardware Kit

90A

Y

8100

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

12 Block Connector Terminals, 3-pin 

(for audio inputs and outputs)

2 Block Connector Terminals, 10-pin 

(for control inputs and outputs)

4 Rackmount Screws and Washers

Optional Accessories

DRS10 Wallplate unit with 10-position rotary switch for preset

control

Certifications

cULus. Listed and cUL Listed to UL 6500 and CSA E60065. Au-

thorized under Verification provision of FCC Part 15 as a Class B

Digital Device.
This Class B digital apparatus complies with Canadian ICES–003.
Conforms to European Union Directives, eligible to bear CE

marking. Meets European Union Low Voltage Requirements:

Certified to EN 60065. Meets applicable tests and per-

formance criteria in European Standard EN55103 (1996) parts 1

and 2, for residential (E1) and commercial and light industrial

(E2) environments.

NOTE:

 EMC conformance testing is based on the use of sup-

plied and recommended cable types. The use of other cable

types may degrade EMC performance.
EMC conformance testing is based on the fact that the computer

is used for setup purposes only and disconnected during EMC

testing.

DFR22 DIMENSIONS

Figure 18

Summary of Contents for DFR22E

Page 1: ...DFR22 Audio Processor with Feedback Reduction 27B8813 Rev 200 Shure Incorporated Printed in U S A...

Page 2: ...NE PAS utiliser cet appareil proximit de l eau 6 NETTOYER UNIQUEMENT avec un chiffon sec 7 NE PAS obstruer les ouvertures de ventilation Installer en respectant les con signes du fabricant 8 Ne pas in...

Page 3: ...h input Each input is routed to each output S Preset selector and indicator for up to 16 presets S Control input pins for setting up remote preset volume and mute controls PACKING LIST S Power Cable S...

Page 4: ...ing with a connected computer 10 RS232 Port Connects the DFR22 to a computer 11 POWER LED Illuminates when 100 240 VAC power is is ap plied to the DFR22 Back Panel U S PATENT NO 5 999 631 OTHER PATENT...

Page 5: ...as fixed and will designate the remaining 11 filters as dynamic 3 The preset indicator will display a flashing h If you want Auto Clear to work automatically after a certain number of hours you must u...

Page 6: ...ck The DFR22 will automatically insert a notch filter to attenuate that frequency Once the system stops feeding back you can further raise the level and repeat the process for additional frequencies T...

Page 7: ...put LEDs will flash as shown in Figure 7 The DFR22 is ready to use once the LEDs stop flashing DFR22 INITIALIZATION Figure 7 AUDIO CONNECTIONS NOTE Audio will pass from the inputs to the outputs even...

Page 8: ...ntrol system to the 3 pin RS 232 Phoenix connector on the back panel of the DFR22 as shown in Figure 11 IMPORTANT You CANNOT connect two PCs to the DFR22 at the same time However you CAN connect an AM...

Page 9: ...used for preset control Any remaining pins can then be used to adjust gain or to mute channels The number of pins need ed for preset control depends on the type of control hardware used as well as the...

Page 10: ...ins When using a potentiometer the total resistance of the cable run should be less than 100 ohms When using momentary switches the total resistance of the cable run should be less than 100 ohms NOTE...

Page 11: ...are Kit 90AY8100 12 Block Connector Terminals 3 pin for audio inputs and outputs 2 Block Connector Terminals 10 pin for control inputs and outputs 4 Rackmount Screws and Washers Optional Accessories D...

Page 12: ...IMITED TWO YEAR WARRANTY Shure Incorporated Shure hereby warrants that this product will be free from defects in materials and workmanship for a period of two years from the date of purchase At its op...

Page 13: ......

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