Shure Headphones 515SBGX User Manual

Model 515SBGX, 515SBG-18X and  
515SBG-18XF User Guide  
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  
515SBGX  
Type  
Dynamic (moving coil)  
Frequency Response  
80 to 15,000 Hz (see Figure 1)  
515SBG-18X  
+20  
+10  
0
1 cm  
(3/8 in.)  
.06 cm  
(2 ft.)  
–10  
-20  
2
3
4 5 6 789  
1000  
2
3
4 5 6 789  
10000 20000  
GENERAL  
20  
50 100  
The Shure Models 515SBGX, 515SBG-18X, and 515SBG-18XF  
microphones are low-impedance dynamic microphones designed  
to be mounted on flexible goosenecks or fixed pips. Optimized fre-  
quency 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 microphones 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.  
Hz  
TYPICAL FREQUENCY RESPONSE  
FIGURE 1  
Polar Pattern  
Cardioid (unidirectional). Effective rejection of sound at rear of mi-  
crophone is uniform at all frequencies, while front pickup charac-  
teristics are uniform about axis (see Figure 2).  
o
o
180  
180  
o
o
o
o
150  
150  
150  
150  
All three models are supplied with a push-to-talk button and a  
four-conductor cable (two conductors shielded).  
o
o
120  
o
o
120  
120  
120  
Features  
o
o
90  
o
o
90  
90  
90  
–20 dB  
–20 dB  
• Frequency response optimized for announcing, narration, and  
paging applications  
• Cardioid pickup pattern symmetrical about axis  
• Neodymium magnet for high signal-to-noise ratio  
–15 dB  
–10 dB  
–5 dB  
–15 dB  
–10 dB  
–5 dB  
o
o
60  
60  
o
o
60  
60  
o
o
o
30  
o
30  
30  
30  
• Shock-mounted cartridge for quiet operation and low stand/han-  
dling noise  
0
0
250 Hz  
2500 Hz  
500 Hz  
6400 Hz  
• Tough diecast locking grille and handle  
1000 Hz  
10000 Hz  
• 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)  
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  
©2009 Shure Incorporated  
Printed in U.S.A.  
27E2974 (Rev. 9)  
 

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