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GENERAL
The Shure 514B is a low impedance, dynamic, hand-held
microphone designed for paging and public address sys-
tems. It provides clear, natural voice response and high in-
telligibility.
The 514B connects to microphone inputs rated at 19 to
300 Ω. It can be used in applications that require long cable
lengths, or where severe hum conditions are present. For
connection to high impedance inputs, use Shure A95 Series
Line Matching Transformers.
The microphone is provided with a four-conductor (two
shielded) coiled cable and a “Million-Cycle” leaf-type switch
designed for constant use under the most rigorous condi-
tions. The 514B fits naturally and comfortably in the hand
and is not affected by heat or humidity. The exclusive
ARMO-DUR
R
case resists mechanical shocks and vibra-
tion, and is impervious to oil, fumes, salt spray, ultraviolet
radiation, and corrosion.
Features
• Smooth, extended frequency response from 100 to
6,000 Hz—provides highly intelligible voice response
• “Million-Cycle” leaf-type switch—provides outstanding
reliability, even under extreme conditions
• Tough ARMO-DUR
R
case
• Long-life, neoprene-jacketed, coiled cable
• Supplied mounting bracket fits hang-up button on back
of microphone
CONNECTIONS
Refer to Figure 1 and Table 1 below. The GREEN wire is
connected to the positive audio input, the WHITE wire is con-
nected to the negative audio input, and the SHIELD is con-
nected to chassis ground. The RED and BLACK leads con-
trol the external relay or switching circuit.
BLACK
RED
GREEN
WHITE
YELLOW
CARTRIDGE
PRESS–TO-TALK
SWITCH
CABLE
SHIELD
INTERNAL CONNECTIONS
FIGURE 1
Table 1. Typical Cable-to-Connector Wiring
INPUT TYPE WIRE
COLOR
FUNCTION XLR
CONNECTOR
1/4 IN.
PHONE JACK
GREEN AUDIO + PIN 2 TIP
BALANCED WHITE AUDIO – PIN 3 RING
SHIELD CHASSIS GROUND PIN 1 SLEEVE
NOTE: The RED and BLACK leads are not part of the audio
circuit. These wires provide a contact closure when the
press-to-talk switch is depressed. This closure may be used
to control an external relay or a transmit/receive circuit.
OPERATION
To operate the microphone, simply hold down the press-
to-talk switch and begin speaking. Release the switch when
you are finished speaking.
MOUNTING
The 514B is supplied with a mounting bracket to provide
a snap-in hang-up for the microphone when it is not in use.
The bracket has mounting holes with clearance for No. 8
screws. See Figure 2 below.
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
MOUNTING BRACKET
FIGURE 2
Model 514B User Guide
27B1387 (BJ)
2002, Shure Incorporated
Printed in U.S.A.