2
Impedance
LO Z: Microphone rating impedance is 150
Ω
(270
Ω
actu-
al) for connection to inputs rated low impedance
HI Z: Microphone impedance is “High” for connections to
high-impedance microphone inputs.
Output Level (at 1,000 Hz)
LO Z HI Z
Open Circuit Voltage:* –56.0 dBV/Pa
–37.5 dBV/Pa
(1.6 mV)
(14 mV)
*1 Pa = 94 dB SPL
Phasing
Positive pressure on 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
die-cast grille and stainless steel screen
Dimensions
515SDX
167 mm
6.567 in
3.81 cm
1.5 in.
2.2 cm
0.85 in.
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 Re-
quirements (EN 50082–1: 1992).
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 prying it off pin 3.
ÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎ
IMPEDANCE
SELECTION SOCKET
PLUG ELEMENT
IMPEDANCE SELECTION CONNECTOR END OF MICROPHONE
FIGURE 4
3.
Reconnect impedance selection socket so that pin 3 of
plug element is now connected to RED (high-impe-
dance) 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 set-
screw by turning it clockwise.
TERMINAL HOUSING
CARTRIDGE
OFF
MALE PLUG
SWITCH
YELLOW
RED – HI Z
WHITE – LO Z
ON
BLUE
TRANSFORMER
2
1
3
BLACK (COMMON)
INTERNAL CONNECTIONS
FIGURE 5
FURNISHED ACCESSORY
Swivel Adapter
A25D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL ACCESSORIES
Shock Stopper
t
Isolation Mount
A55M
. . . . . . . . . . . . . . . .
Windscreen
A85WS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Desk Stand
S37A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vibration-Isolation Stand
S39A
. . . . . . . . . . . . . . . . . . . . . . . .
Cable, 4.6 m (15 ft) or 6.1 m (20 ft), 1-conductor, with
phone plug (Hi Z)
C20HZ
. . . . . . . . . . . . . . . . . . . . . . . . . .
Cable, 7.6 m (25 ft), 2-conductor, with 3-pin XLR
connectors (Lo Z)
C25J, C25F
. . . . . . . . . . . . . . . . . . . . . .
REPLACEMENT PARTS
Cartridge
R180
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON/OFF switch
RK57S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screen and Grille Assembly
RK333G
. . . . . . . . . . . . . . . . . .
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 Ser-
vice Center.
