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www.shure.com 

Asia, Pacific:

Shure Asia Limited

22/F, 625 King’s Road

North Point, Island East

Hong Kong

Phone: 852-2893-4290

Fax: 852-2893-4055

Email: [email protected]

United States, Canada, Latin 

America, Caribbean:

Shure Incorporated

5800 West Touhy Avenue

Niles, IL 60714-4608 USA
Phone: +1-847-600-2000

Fax: +1-847-600-1212 (USA)

Fax: +1-847-600-6446

Email: [email protected]

Europe, Middle East, Africa:

Shure Europe GmbH 

Jakob-Dieffenbacher-Str. 12,

75031 Eppingen, Germany

Phone: +49-7262-92490

Fax: +49-7262-9249114

Email: [email protected]

CIRCUIT MODIFICATION

To modify the microphone circuit for normally shorted operation, proceed 

as follows:

1. 

Remove the three No. 6 Phillips screws from the back of the 

microphone case.

2. 

Separate the front and back sections of the case, and remove the 

press-to-talk switch button.

3. 

Unsolder or clip the GREEN cable lead from the press-to-talk 

switch solder lug.

4. 

Solder the GREEN cable lead to the GREEN cartridge lead on 

the press-to-talk switch solder lug.

5. 

Replace the press-to-talk switch button in the front section of the 

case, then join the case halves together and install the No.

6. 

Phillips screws removed in Step 1 above.

SPECIFICATIONS

Type

Dynamic, noise-canceling

Frequency Response

100 to 5,000 Hz (see Figure 2)

20

20000 

1000

10000 

50

100 

+10 

–10 

Hz 

B d 

TYPICAL FREQUENCY RESPONSE 

FIGURE 2

Impedance (at 1000 Hz)

Rated at 150 Ω (175 Ω actual) for connection to microphone 

 

inputs rated at 19 to 300 Ω.

Output Level (at 1,000 Hz, 5/16 in.)

Open Circuit Voltage-66.0 dBV/Pa (0.5 mV)  

0 dB = 1 volt per 1 Pascal/94 dB SPL

Hum Sensitivity

Equivalent to 32 dB SPL in 1 millioersted field

Operating Temperature Range

-40° to 74° C (-40° to 165° F)

Switch Type

Double-pole, single-throw, leaf-type, push-to-talk

Cable

Non-detachable. 1.8 m (6 ft), neoprene-jacketed coil cord,  

four-conductor (two conductors shielded).

Case

Two-tone gray, high-impact ARMO-DUR

®

Net Weight

330 grams (11.6 oz)

Dimensions

See Figure 3

MICROPHONE 

MOUNTING BRACKET 

46 mm 

36.5 mm 

4.7 mm 

34.5 mm 

10.3 mm 

9.5 mm 

9.1 mm 

(23/64 IN.) 

(3/8 IN.) 

(1-13/16 IN.) 

(1-7/16 IN.) 

(3/16 IN.) 

(1-23/64 IN.) 

(13/32 IN.) 

MOUNTING HOLES,  

CLEARANCE FOR  

No. 8 SCREWS 

67 mm 

(2-5/8 IN.) 

94 mm 

(3-11/16 IN.) 

45 mm 

(1-25/32 IN.) 

8 mm 

(5/16 IN.) 

14 mm 

(9/16 IN.) 

41 mm 

(1-19/32 IN.) 

19 mm 

(3/4 IN.) 

18 mm 

(23/32 IN.) 

4.8 mm 

(3/16 IN.) 

OVERALL DIMENSIONS

FIGURE 3

CERTIFICATION

Eligible to bear CE Marking. Conforms to European EMC Directive  

89/336/EEC. Meets applicable tests and performance criteria in European 

Standard EN55103 (1996) parts 1 and 2, for residential (E1) and light 

industrial (E2) environments.

SUPPLIED ACCESSORY

Mounting Bracket (3 per kit) 

REPLACEMENT PARTS

Cartridge

R98B

Cable

C117

Switch

RK338S

SERVICE INFORMATION

For additional service or parts information, please contact Shure's Service 

department at 1-800-516-2525. Outside the United States, please contact 

your authorized Shure Service Center.

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