Shure 515SBGX User manual

515SBGX 515SBG–18X
GENERAL
The Shure Models 515SBGX, 515SBG-18X, and
515SBG-18XF microphones are low-impedance dynamic mi-
crophones designed to be mounted on flexible goosenecks or
fixed pipes. Optimized frequency response and a unidirectional
(cardioid) pickup pattern makes them ideal for language labs,
paging applications, and base station communications. They
are also recommended for use as talkback or cuing micro-
phones in TV, film, and recording studios. Because of their low
impedance, these microphones retain their level and response
characteristics even when long lengths of cable are used.
All three models are supplied with a push-to-talk button and
a four-conductor cable (two conductors shielded).
Features
•Frequency response optimized for announcing, narration,
and paging applications
•Cardioid pickup pattern symmetrical about axis
•Neodymium magnet for high signal-to-noise ratio
•Shock-mounted cartridge for quiet operation and low
stand/handling noise
•Tough diecast locking grille and handle
•Built-in push-to-talk button controls microphone circuit and
relay or control circuit
•45.7 cm (18 in.) gooseneck and mounting flange supplied
(515SBG-18X and 515SBG-18XF only)
VARIATIONS
MODEL 515SBGX: Does not include gooseneck or mounting
flange
MODEL 515SBG-18X: Includes gooseneck and 76.2 mm (3 in.)
diameter mounting flange
MODEL 515SBG-18XF: Includes gooseneck and 44.4 mm
(1–3/4 in.) diameter mounting flange
SPECIFICATIONS
Type
Dynamic (moving coil)
Frequency Response
80 to 15,000 Hz (see Figure 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
0.6 m (2 ft)
1 cm (3/8in.)
TYPICAL FREQUENCY RESPONSE
FIGURE 1
Polar Pattern
Cardioid (unidirectional). Effective rejection of sound at rear of
microphone is uniform at all frequencies, while front pickup
characteristics are uniform about axis (see Figure 2).
150o
120o
150o
120o
180o
30o
60o
90o
30o
60o
90o
–5 dB
–10 dB
–15 dB
–20 dB
0
10000 Hz
6400 Hz
2500 Hz
150o
120o
150o
120o
180o
30o
60o
90o
30o
60o
90o
–5 dB
–10 dB
–15 dB
–20 dB
0
1000 Hz
500 Hz
250 Hz
TYPICAL POLAR PATTERN
FIGURE 2
Impedance
150 Ω rated (180 Ω actual)
Output Level (at 1,000 Hz)
Open Circuit Voltage: –57 dBV/Pa* (1.4 mV)
*1 Pa = 94 dB SPL
Phasing
Positive pressure on diaphragm produces positive voltage on
RED cable relative to BLACK cable lead
Switch
Built-in, leaf-type, non-locking, push-to-talk
Model 515SBGX, 515SBG-18X, and
515SBG-18XF User Guide
27D2974 (BJ)
2002, Shure Incorporated Printed in U.S.A.

Shock Mount
Internal rubber vibration isolator
Cable
Highly durable cable with effective hum shielding, four con-
ductors (two shielded), plastic jacketed
Model 515SBGX: 1.8 m (70 in.)
Models 515SBG-18X and 515SBG-18XF: 1.3 m (51 in.) from
gooseneck
Case
Silver finish die casting with black enamel diecast grille and
stainless steel screen
Dimensions
See Figure 3
51 in.
120 cm
1.5 in.
3.75 cm
6.5 in.
16.5 cm
0.85 in.
2 cm
OVERALL DIMENSIONS
FIGURE 3
Certification
Conforms to European Union directives, eligible to bear CE
marking; meets European Union EMC Immunity Require-
ments (EN 55103).
Net Weight
515SBGX 380 g (13.5 oz). . . . . . . . . . . . . . . . . . . . . . . . . . .
515SBG-18X 900 g (31.8 oz). . . . . . . . . . . . . . . . . . . . . . . .
515SBG-18XF 787 g (27.8 oz). . . . . . . . . . . . . . . . . . . . . . .
FURNISHED ACCESSORIES
1.27 mm (.050 in.) Hex Wrench 80A67. . . . . . . . . . . . . . . . .
45.75 cm (18 in.)Gooseneck
(515SBG-18X, 515SBG-18XF only) G18. . . . . . . . . . . . .
Flange (515SBG-18X only) A13HD. . . . . . . . . . . . . . . . . . .
Flange (515SBG-18XF only) A12. . . . . . . . . . . . . . . . . . . . .
REPLACEMENT PARTS
Cartridge R180. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grille Assembly RK334G. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable 70A4063. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gooseneck (515SBG-18X, 515SBG-18XF) G18. . . . . . . . .
Flange (515SBG-18X) A13HD. . . . . . . . . . . . . . . . . . . . . . . .
Flange(515SBG-18XF) A12. . . . . . . . . . . . . . . . . . . . . . . . . .
Windscreen A85WS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONNECTIONS
These low-impedance microphones are designed for con-
nection to microphone inputs rated at 75 to 300 ohms. Using ba-
lanced-line low-impedance cables permits very long cable
lengths without affecting response or level. The RED and
BLACK cable leads are the microphone conductors for ba-
lanced-line connections; the shield is connected to the amplifier
ground.
For unbalanced operation, connect the BLACK lead to the
shield, and use the RED lead as the microphone conductor.
The GREEN and WHITE cable leads are used to control an
external relay or control circuit. Refer to the following table and
to the wiring diagram in Figure 4.
INPUT TYPE WIRE
COLOR FUNCTION XLR CONNECTOR 1/4 IN. PHONE
PLUG
RED AUDIO PIN 2 TIP
UNBALANCED BLACK AUDIO GROUND PIN 3 SLEEVE
SHIELD CHASSIS GROUND PIN 1 SLEEVE
RED AUDIO + PIN 2 TIP
BALANCED BLACK AUDIO –PIN 3 RING
SHIELD CHASSIS GROUND PIN 1 SLEEVE
SHIELD
RED
BLACK
BLUE
GREEN
WHITE
DIRECTION TO ACTUATE
SWITCH CASE GROUND
CARTRIDGE
RED DOT
INTERNAL CONNECTIONS
FIGURE 4
MOUNTING THE 515SBG-18X AND 515SBG-18XF
Mount the 515SBG-18X or 515SBG-18XF as follows:
1. Thread the supplied hexnut all the way down on the mount-
ing flange.
2. Thread the gooseneck tightly on the flange.
3. Back the hexnut up against the gooseneck, and use a
wrench to tighten the nut firmly against the bottom of the
gooseneck.
MOUNTING THE 515SBX ONTO A GOOSENECK
Mount the 515SBGX onto a gooseneck or fixed pipe with a
5/8in–27 thread as follows:
1. Unscrew the black end cap from the microphone.
2. Remove the thin metal washer and the metal spacer.
3. Re-install the washer by sliding it back onto the cable and up
into the end of the microphone.
4. Slip the cable into the gooseneck or pipe and thread the mi-
crophone firmly to the mount.
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.
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]