Shure specifications MODEL 515BSLX, Specifications, Unidirectional Microphone, Features, Type

Model 515BSLX User Guide

MODEL 515BSLX

UNIDIRECTIONAL MICROPHONE

The Shure Model 515BSLX is a dynamic (moving coil), low-im- pedance, cardioid (unidirectional) microphone designed for mount-

ing on a gooseneck or fixed pipe with a 5/8 in.-27 thread. The cardioid pickup pattern provides excellent voice reproduction with effective rejection of feedback and background noise. The 515BSLX is especially suitable for use in communications, paging, and talkback systems. The microphone is supplied with a slide switch controlling the microphone audio and a relay circuit, permit- ting hands-free operation. The microphone comes with a 1.8 m (6 ft) four-conductor, two conductors shielded, cable.

The 515BSLX is wired with the microphone circuit normally open for use in parallel-wired microphone installations.

FEATURES

•Rolled-off low-frequency response combined with a smooth high-frequency rise for clear and intelligible voice pickup

•Symmetrical cardioid pickup pattern minimizes feedback

•Shock-mounted cartridge for quiet operation and low stand/handling noise

•Neodymium magnet for high signal-to-noise ratio

•Heavy-duty zinc, die-cast, locking, metal grille protects cartridge and resists wear

•Built-in slide switch controls both microphone circuit and relay or control circuit

•Backed by the Shure 2-years warranty

©2005, Shure Incorporated 27E2975 (Rev. 9)

SPECIFICATIONS

Type

Dynamic (moving coil)

Frequency Response (Figure 1)

80 to 15,000 Hz

+20

1 cm (3/8 in.)

+10

dB	0
	–10	.6 m (2 ft)
	-20
			2	3	4 5 6 789	2	3	4 5 6 789
	20	50	100		1000			10000	20000

Hz

TYPICAL FREQUENCY RESPONSE

FIGURE 1

Polar Pattern (Figure 2)

Cardioid (unidirectional). Effective rejection of sound at rear of microphone is uniform with frequency; front pickup characteris- tics are symmetrical about axis.

	180°		180°
150°	150°	150°	150°
120°	120°	120°	120°
90°	90°	90°	90°
	–20 dB		–20 dB
	–15 dB		–15 dB
60°	60°	60°	60°
	–10 dB		–10 dB
	–5 dB		–5 dB
30°	30°	30°	30°
	0		0
	250 Hz		2500 Hz
	500 Hz		6400 Hz
	1000 Hz		10000 Hz

TYPICAL POLAR PATTERN

FIGURE 2

Impedance

150 Ω rated (180 Ω actual)

Sensitivity (at 1,000 Hz)

LOZ

Open Circuit Voltage -57.0 dBV/Pa (1.4 mV)

(1 Pa = 94 dB SPL)

Polarity

Positive pressure on diaphragm produces positive voltage on the RED lead with respect to the BLACK lead

Switch

Built-in, double-pole double-throw slide switch. Lockplate to lock switch ON

Printed in U.S.A.