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Impedance
LO Z: Microphone rated impedance is 150 Ω (270 Ω actual) for
connection to microphone inputs rated low impedance
HI Z: Microphone impedance is “High” for connection to high-im-
pedance microphone inputs
Sensitivity (at 1,000 Hz)
LO Z
HI Z
Open Circuit Voltage* – 55.5 dBV/Pa – 37.0 dBV/Pa*
(1.7 mV) (14.1 mV)
*1 Pascal=94 dB SPL
Phasing
Positive pressure on the diaphragm produces positive voltage
on pin 2 relative to pin 3 in both HI Z and LO Z modes
Switch
Built-in ON/OFF switch, lockplate to lock switch ON
Connector
Three-pin professional (male XLR) type
Cartridge Shock Mount
Internal rubber vibration-isolator
Swivel Adapter
Positive action, break-resistant, adjustable through 180° slip-out
removal for handheld use, designed for mounting on stand with
5/8-in.–27 thread
Case
Platinum beige enamel die casting with platinum beige steel
grille
Dimensions
See Figure 3
OVERALL DIMENSIONS
FIGURE 3
Net Weight
315 grams (11.1 oz)
Certification
Conforms to European Union directives, eligible to bear CE
marking; meets European Union EMC Immunity Requirements
(EN 50 082-1, 1992); RF radiated (IEC 801-3); ESD (IEC 801-
2); EFT (IEC 801-4).
IMPEDANCE SELECTION
The microphone is shipped connected for low impedance
operation. To change to high impedance, refer to Figure 4 and
proceed as follows:
1. Remove plug element by turning slotted setscrew in
(counterclockwise). Use long-nose pliers to pull plug element
from case, but be careful not to stretch or break wires.
2. Disconnect 2-terminal impedance selection socket from rear
of plug element by pulling it off pin 3.
3. Reconnect impedance selection socket so that pin 3 of plug
element is now connected to RED (high-impedance) lead.
4. Swivel socket so that it does not extend beyond edge of
connector (see inset in Figure 4).
5. Reinsert plug element into microphone; then tighten setscrew
by turning it clockwise.
IMPEDANCE SELECTION
CONNECTOR END OF MICROPHONE
FIGURE 4
INTERNAL CONNECTIONS
FIGURE 5
FURNISHED ACCESSORY
Break-Resistant Swivel Adapter............................................A25D
OPTIONAL ACCESSORIES
Desk Stand................................................................. S37A, S39A
Shock Stopper™ Isolation Mount.......................................... A55M
Windscreen (7 colors available) ............................. A58WS Series
Cable:
4.6 m (15 ft) or 6.1 m (20 ft) 1-conductor with phone plug
(High Impedance).............................................C15HZ, C20HZ
7.6 m (25 ft) 2-conductor with 3-pin XLR connectors
(Low Impedance).............................................................. C25J
REPLACEMENT PARTS
Cartridge................................................................................ R180
Screen and Grille Assembly .............................................RK332G
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.
(.868 in.)
(2.129 in.)
(6.45 in.)
160 mm
52 mm
15 mm
IMPEDANCE
SELECTION SOCKET
PLUG
ELEMENT
TERMINAL HOUSING
CARTRIDGE
OFF
MALE PLUG
SWITCH
YELLOW
RED – HI Z
WHITE – LO Z
ON
BLUE
TRANSFORMER
2
1
3
BLACK
(COMMON)