Shure 27B1387 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 W.
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
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-pro-

vides highly intelligible voice response

• “Million-Cycle” leaf-type switch-provides outstanding reliability,

even under extreme conditions

• Tough ARMO-DURâ case

• Long-life, neoprene-jacketed, coiled cable

• Supplied mounting bracket fits hang-up button on back of

microphone

â

case resists

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

BALANCED WHITE AUDIO - PIN 3 RING

WIRE

COLOR

GREEN AUDIO + PIN 2 TIP

SHIELD CHASSIS GROUND PIN 1 SLEEVE

FUNCTION XLR

CONNECTOR

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.

9.1 mm

(23/64 IN.)

(1-13/16 IN.)

46 mm

36.5 mm

(1-7/16 IN.)

MOUNTING HOLES,
CLEARANCE FOR
No. 8 SCREWS

BLACK

RED

GREEN
WHITE

SHIELD

1/4 IN. PHONE

10.3 mm

(13/32 IN.)

JACK

©2003, Shure Incorporated

27B1387 (Rev. 4)

9.5 mm

(3/8 IN.)

4.7 mm

(3/16 IN.)

MOUNTING BRACKET

FIGURE 2

34.5 mm

(1-23/64 IN.)

Printed in U.S.A.

SPECIFICATIONS

Type

Dynamic

Frequency Response

100 to 6,000 Hz (see Figure 3)

+10

0

dB

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 Requirements
(EN 50082-1, 1992).

FURNISHED ACCESSORY

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

–10

20 200001000 1000050 100

9876543298765432

Hz

TYPICAL FREQUENCY RESPONSE

FIGURE 3

Impedance

Microphone rating impedance is 150 W (200 W actual) for con-
nection to microphone inputs rated at 19 to 300W.

Output Level

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

–56.5 dBV/Pa (1.5 mV)**

*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

â

Dimensions

See Figure 4

OPTIONAL ACCESSORY

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

REPLACEMENT PARTS

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

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

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

OVERALL DIMENSIONS

FIGURE 4

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

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