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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
515SBGX
SPECIFICATIONS
Type Dynamic (moving coil) Frequency Response 80 to 15,000 Hz (see Figure 1)
515SBG-18X
+20
+10
1 cm (3/8 in.)
dB
0
.06 cm (2 ft.)
�10
GENERAL
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 frequency response and a unidirectional (cardioid) pickup patter 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.
-20
20
50 100
2
3 4 5 6 7 89 1000
2
3 4 5 6 7 89 10000 20000
Hz 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).
180o 150o 150o 120o 120o 150o 180o 150o 120o
All three models are supplied with a push-to-talk button and a four-conductor cable (two conductors shielded).
120o
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)
90o �20 dB 60o 30o �15 dB �10 dB �5 dB 0 250 Hz 500 Hz 1000 Hz 30o
90o 90o �20 dB 60o 60o 30o �15 dB �10 dB �5 dB 0 2500 Hz 6400 Hz 10000 Hz 30o
90o
60o
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
Printed in U.S.A.
©2006, Shure Incorporated 27E2974 (Rev. 8)
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