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SHURE Incorporated Web Address: http://www.shure.com
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
In U.S.A., Phone: 1-847-600-2000 Fax: 1-847-600-1212
In Europe, Phone: 49-7131-72140 Fax: 49-7131-721414
In Asia, Phone: 1-852-2893-4290 Fax: 1-852-2893-4055
International Fax: 1-847-600-6446
Impedance
Microphone rating impedance is 150 ohms (270 ohms actual)
for connection to microphone inputs rated at 75 to 300 ohms
Sensitivity (at 1,000 Hz)
Open Circuit Voltage. . . . . . . . . . . . . . -“58.0 dBV/Pa (1.3 mV) 1 Pascal=94 dB SPL
Polarity
Positive pressure on the diaphragm produces positive voltage
on pin 2 relative to pin 3 of the output connector
Switch
Built-“in On/Off switch, integral part of swivel mount, connector
Three pin professional type, designed to mate with Cannon XL
series, Switchcraft A3 (Q.G.) series, or equivalent
Case
Chrome-“plated die casting
Dimensions
See Figure 3OVERALL DIMENSIONSFIGURE 3
Net Weight
624 grams (22 oz)
CERTIFICATION
Eligible to bear CE Marking. Conforms to European EMC Direc-
tive 89/336/EEC. Meets applicable tests and performance criteria
in European Standard EN55103 (1996) parts 1 and 2, for residen-
tial (E1) and light industrial (E2) environments.
POLARITY
To test two microphones and their cables for common po-
larity, connect them to an amplifier and talk or sing into them
while holding them three or four inches apart. The sound
from the speakers should be the same when talking into ei-
ther microphone or directly between them if they have com-
mon polarity. If the sound level drops drastically, or if a dead
spot is found, when talking between the two microphones,
either the microphones or their cables have different polari-
ty. All cables and microphones can be tested in this manner
to ensure that they have common polarity.
To reverse the polarity of a low-“impedance microphone
cable, use either a Shure A15PRS Switchable Phase Re-
verser or interchange the wires connected to pins 2 and 3 of
the connector. To reverse the polarity of a microphone, inter-
change the cartridge leads (see Figure 4.) This should be
performed by your dealer, the Shure Factory Service De-
partment, or other qualified service personnel.
INTERNAL CONNECTIONS
FIGURE 4
OPTIONAL ACCESSORIES
Desk Stand................................................... S37A, S39A
Line Matching Transformer ........................ A85F, A95UF
Cable and Plug Assembly ................. C25B, C25E, C25J
REPLACEMENT PARTS
Cartridge ................................................................. R115
On/Off Switch ....................................................... RK32S
Plug Element...................................................... RK169P
For additional service or parts information, please contact
Shures Service department at 1-800-516-2525 or
www.shure.com. Outside the United States, please contact
your authorized Shure Service Center.
CARTRIDGE SWITCHXLR CONNECTOR
BLACK
YELLOW
CODED TERMINAL BLUE YELLOW
BLACK
1
2
3
