Shure 514B User Manual

GENERAL

The Shure 514B is a low impedance, dynamic, hand-held
microphone designed for paging and public address sys­tems. It provides clear, natural voice response and high in­telligibility.

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 condi­tions. 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 vibra­tion, 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

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case

• Long-life, neoprene-jacketed, coiled cable

• Supplied mounting bracket fits hang-up button on back

of microphone

Model 514B User Guide

CONNECTIONS

Refer to Figure 1 and Table 1 below. The GREEN wire is
connected to the positive audio input, the WHITE wire is con­nected to the negative audio input, and the SHIELD is con­nected to chassis ground. The RED and BLACK leads con­trol the external relay or switching circuit.

PRESS–TO-TALK

SWITCH

CABLE

CARTRIDGE

YELLOW

INTERNAL CONNECTIONS

FIGURE 1

Table 1. Typical Cable-to-Connector Wiring

INPUT TYPE WIRE

BALANCED WHITE AUDIO – PIN 3 RING

COLOR

GREEN AUDIO + PIN 2 TIP

SHIELD CHASSIS GROUND PIN 1 SLEEVE

FUNCTION XLR

CONNECTOR

NOTE: The RED and BLACK leads a re n ot part o f t he a udio

circuit. These wires provide a contact closure when the
press-to-talk switch is depressed. This closure m ay be used
to control an external relay or a transmit/receive circuit.

OPERATION

To operate the microphone, simply hold down the press­to-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.

9.1 mm

(23/64 IN.)

(1-13/16 IN.)

9.5 mm
(3/8 IN.)

46 mm

(3/16 IN.)

36.5 mm

(1-7/16 IN.)

4.7 mm

MOUNTING HOLES,
CLEARANCE FOR
No. 8 SCREWS

34.5 mm

(1-23/64 IN.)

MOUNTING BRACKET

FIGURE 2

BLACK
RED
GREEN

WHITE

SHIELD

1/4 IN.

PHONE JACK

10.3 mm

(13/32 IN.)

2002, Shure Incorporated
27B1387 (BJ)

Printed in U.S.A.

SPECIFICATIONS

Á

Á

Á

Á

Á

Á

Type

Dynamic

Frequency Response

100 to 6,000 Hz (see Figure 3)

+10

0

dB

–10

20 200001000 1000050 100

98765432

Hz

98765432

TYPICAL FREQUENCY RESPONSE

FIGURE 3

Impedance

Microphone rating impedance is 150 Ω (200 Ω actual)
for connection to microphone inputs rated at 19 to
300 Ω.

Output Level

Open Circuit Voltage –36.5 dB (15 mV)*. . . . . . . . . . . .

–56.5 dBV/Pa (1.5 mV)**

Dimensions

See Figure 4

OVERALL DIMENSIONS

FIGURE 4

Net Weight

200 grams (7 oz)

Packaged Weight

372 grams (13 oz)

CERTIFICATION

Conforms to European Union directives, eligible to bear

CE marking; meets European Union EMC Immunity Re-

quirements (EN 50082–1, 1992).

FURNISHED ACCESSORY

Mounting Bracket (3 in kit) RK6MB. . . . . . . . . . . . . . . . . . .

OPTIONAL ACCESSORY

Line Matching Transformer A95 Series. . . . . . . . . . . . . . .

*0 dB = 1 volt per 100 microbars
**1Pascal = 94 dB SPL

Switch

Push-to-talk, leaf-type switch to actuate microphone
circuit and relay or switching circuit. Microphone circuit
normally open.

Cable

1.5 m (5 ft) extended, four-conductor, two-conductors
shielded, neoprene-jacketed, coiled cable

Case

Matte black ARMO-DUR

R

REPLACEMENT PARTS

Dynamic Cartridge R103. . . . . . . . . . . . . . . . . . . . . . . . . . .

Switch RK15S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cable Assembly C25C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SHURE Incorporated Web Address: http://www.shure.com
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
Phone: [phone] Fax: [phone]
In Europe, Phone: [phone] Fax: [phone]
In Asia, Phone: [phone] Fax: [phone]
Elsewhere, Phone: [phone] Fax: [phone]