Shure 515SBGX and 515SBG-18X User Guide - Low-Impedance Dynamic Microphones

Model 515SBGX, 515SBG-18X and 515SBG-18XF User Guide

515SBGX

515SBG-18X

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 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.

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/han- dling 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)

	+20
	+20
	+10

		1 cm
		1 cm
		(3/8 in.)

dB	0
	0

	–10	.06 cm
		(2 ft.)
		(2 ft.)
	-20


			2	3	4 5 6 789	2	3	4 5 6 789
	20	50	2	3	4 5 6 789	2	3	4 5 6 789	20000
	20	50	100		1000			10000	20000

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).

	180o			180o
150o	150o			150o	150o
120o		120o	120o		120o
90o		90o 90o			90o
	–20 dB			–20 dB
	–15 dB			–15 dB
60o	–10 dB	60o	60o	–10 dB	60o
	–5 dB			–5 dB
30o	30o			30o	30o
	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)

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)
27E2974 (Rev. 9)

515SBGX specifications

The Shure 515SBGX is a sought-after vocal microphone that has earned its reputation for delivering high-quality sound and reliability in various applications, ranging from live performances to studio recordings. This dynamic microphone is known for its cardioid pickup pattern, which effectively captures sound from the front while minimizing ambient noise from the sides and rear. This feature is particularly beneficial in loud environments, making the 515SBGX an ideal choice for musicians and performers who want to focus on their vocals without interference from background sounds.

One of the standout characteristics of the Shure 515SBGX is its rugged construction. Designed to withstand the rigors of touring and frequent use, the microphone is built with a durable metal housing. This resilience ensures that the microphone can endure the bumps and drops that can occur during transportation and performance, thereby ensuring longevity and consistent performance over time.

In terms of sound quality, the Shure 515SBGX excels with its frequency response tailored specifically for vocal applications. The microphone captures a broad range of frequencies, allowing for clarity and warmth in vocal reproduction. This makes it suitable for a variety of vocal styles, from soft ballads to powerful rock verses. Additionally, the mic features a built-in pop filter, which helps to reduce plosive sounds, ensuring that recordings and performances remain clear and professional.

Another technological highlight of the Shure 515SBGX is its low impedance design, which significantly reduces the likelihood of interference from electrical noise. This allows users to connect the microphone to a range of equipment, including mixers and amplifiers, without worrying about signal degradation. The microphone’s output is also optimized for minimal signal loss, providing a strong and clear audio feed.

Moreover, the Shure 515SBGX integrates seamlessly with various accessories, such as stands and shock mounts, adding to its versatility. Whether used in a studio or on stage, this microphone meets the needs of performers and audio engineers alike.

With its blend of quality, durability, and performance, the Shure 515SBGX remains a top choice for professionals seeking a reliable vocal microphone that can deliver exceptional sound in a variety of settings.