Shure WL50 User manual

Models WL50/WL51 and

MC50/MC51 User Guide

27C3114 (AH)

2001, Shure Incorporated Printed in U.S.A.

ENGLISH 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FRANÇAIS 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DEUTSCH 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ESPAÑOL 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ITALIANO 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGLISH

GENERAL

Shure models WL50/MC50 (omni) and WL51/MC51 (unidirectional) are subminiature, electret condenser lavalier micro-

phones. They provide uncompromised sound quality and high reliability with minimal visibility in sound reinforcement

applicationssuch as television broadcasting and stage performances. Despite its small size, the microphone’s condens-

er element provides full, clear and natural reproduction of speech. Each microphone is supplied with two foam wind-

screens to minimize wind noise. The supplied mounting accessories consist of a lapel clip, a tie clip, a pin mount, and

a magnet mount, giving the user a wide variety of options for placement.

MODEL VARIATIONS

WL50 (omni)/WL51 (uni): Intended for wireless use. Connects to Shure wireless bodypack transmitters via a TA4F

connector.

WL50X(omni)/WL51X (uni): Supplied with a 3 m (10 ft.) stripped and tinned cable for wiring to an alternate connector.

WL50–LO: A lower sensitivity variation of the WL50, supplied with a TA4F connector. (omnidirectional)

WL50X–LO: A lower sensitivity version of the WL50, supplied with stripped and tinned leads. (omnidirectional)

MC50 (omni)/MC51 (uni): Intended for hardwired applications. WL50 or WL51 microphone supplied with an in-line pre-

amplifierwith a three-pin male XLR audio connector.

FEATURES

SExtended frequency response with user changeable equalization caps for response shaping (omni only)

SLow visibility with a variety of options for mounting

SWL50—(omnidirectional) offered in black, beige, and white with matching accessories

SWL51—(unidirectional) offered in black and white with matching accessories

SLow handling noise

SLegendary Shure quality, ruggedness, and reliability

WINDSCREENS

Two acoustic foam windscreens are supplied to help reduce undesirable wind noise.

EQUALIZATION CAPS

The WL50 and the MC50 omnidirectional models are each supplied with two types of equalization caps for high frequency

response shaping. The caps effect the response range between 5,000 and 20,000 Hz (see Figure 1 on page 12), and

can be distinguished by the color of their mesh screens. The mild boost equalization cap has a very fine mesh, silver

color screen, and attenuates the natural high frequency peak of the microphone. The high boost equalization cap has

an open mesh gold color screen and does not attenuate the high frequency peak. The WL51 and MC51 unidirectional

models are supplied with the high boost equalization cap only. The WL51 and MC51 models should never be

used with the mild boost equalization cap because the unidirectional pick-up pattern will be severely altered.

This is due to partial blocking of the front opening, and they will not perform correctly.

NOTE: For best sound quality, replace the equalization caps if they become clogged with make-up.

USING THE MC50/MC51 WITH A MIXER

The preamplifier supplied with both the MC50 and MC51 requires phantom power ranging from 11 to 52 Vdc. Connect

the preamplifier to a mixer input with a minimum load impedance of 800 Ωto maximize operating headroom.

USING THE WL50/WL51 WITH OTHER BODYPACK TRANSMITTERS

If connecting the WL50/WL51 to anything OTHER than a Shure wireless bodypack, make sure the device provides a

regulated +5 Vdc (130 A minimum) to the red conductor. Refer to the wiring diagrams in Figures 3 and 4 on page 14.

WIRING THE WL50X/WL51X TO AN ALTERNATE CONNECTOR

Model WL50X/WL51X is supplied with a stripped and tinned cable for wiring to a variety of connectors. Refer to the

WL50X/WL51Xwiring diagram in Figure 4 on page 14. For additional information on wiring the WL50X/WL51X to an alter-

nate connector, contact Shure’s Applications Department at (847) 866–2525 or 1–800–516–2525.

MOUNTING THE MICROPHONE

The WL50/WL51 and MC50/MC51 microphones come with the following mounting accessories

(see Figure 5 on page 15):

Swiveling Lapel Clip. Features a spring-loaded clasp that attaches easily to a necktie, lapel, blouse or shirt, connected

to a rotatable mounting clip. To mount, snap the microphone cable into the clip near the neck of the microphone, then

attach the clasp to an article of clothing. Rotate the mounting clip to place the microphone at desired angle.

Dual Tie Clip. Features a spring-loaded clasp that attaches easily to a necktie or suit coat lapel, and a clip that holds one

or two microphones. To mount, snap the microphone cable(s) into the clip near the neck of the microphone, then attach

the clasp to an article of clothing.

Pin Mount. Features a translucent mounting clip with two straight pins that easily secure to an article of clothing. To

mount, slide the straight pins into clothing, then snap the microphone cable into the mounting clip near the neck of the

microphone.

Magnet Mount. Features a backplate that is worn under clothing and attaches to a magnetic mount capable of holding

one or two microphones. To mount, place the magnetic backplate “necklace”around neck and under clothing, then align

the magnet mount to the backplate and secure it to clothing. Snap microphone cable(s) into the clip near the neck of the

microphone, and adjust the magnet mount to hold microphone at the desired angle.

WARNING: The magnet mount should not be used by persons fitted with an implanted

medical device, such as a pacemaker or defibrillator.

SPECIFICATIONS WL50{WL50–LO{MC50}WL51{MC51}

Type Condenser

(electret bias) Condenser

(electret bias)

Polar Pattern Omnidirectional Omnidirectional Omnidirectional Cardioid Cardioid

Output Impedance N/A N/A 136 actual

(rated at 150 )N/A 136 actual

(rated at 150 )

Recommended Min.

Input Impedance 20 k20 kN/A 20 kN/A

Output Level –45.0 dBV/Pa

(1 Pa=94 dB SPL) –54.0 dBV/Pa

(1 Pa=94 dB SPL) –41.0 dBV/Pa

(1 Pa=94 dB SPL) –50.0 dBV/Pa

(1 Pa=94 dB SPL) –46.0 dBV/Pa

(1 Pa=94 dB SPL)

Maximum SPL 133 dB at 1%

THD/20k  load 142 dB at 1%

THD/20k  load 138 dB at 1%

THD/1 k ohm load 138 dB at 1%

THD/20k  load 143 dB at 1%

THD/1 k ohm load

Frequency Response 20 to 20,000 Hz (see Figure 1)

Dynamic Range 103.0 dB 103.0 dB 108.0 dB 103.0 dB 108.0 dB

Output Noise

(equivalent SPL,

A-weighted)

30 dB typical;

33 dB maximum 39 dB typical;

42 dB maximum 30 dB typical;

33 dB maximum 35 dB typical;

38 dB maximum 35 dB typical;

38 dB maximum

SPECIFICATIONS MC51}

WL51{

MC50}

WL50–LO{

WL50{

Signal-to-Noise

Ratio 64 dB at 94 dB

SPL 55 dB at 94 dB

SPL 64 dB at 94 dB

SPL 59 dB at 94 dB

SPL

Power

Requirements +5 Vdc on pin 2,

return on

pin 1 (ground).

+5 Vdc on pin 2,

return on

pin 1 (ground).

11 to 52 Vdc

(positive on pins 2

and 3, return on

pin 1).

11 to 52 Vdc

(positive on pins 2

and 3, return on

pin 1).

+5 Vdc on pin 2,

return on

pin 1 (ground).

Current Drain 60–130 A 60–130 A4.6 mA 60–130 A4.6 mA

Polarity—Positive

pressure on the

diaphragm produces

a positive voltage at:

pin 3 relative to pin 1 at the output

connector of the microphone. pin 2 relative to

pin 3 of the output

connector.

pin 3 relative to

pin 1 at the output

connector of the

microphone.

pin 2 relative to

pin 3 of the output

connector.

Overvoltage

Protection N/A N/A ±75.0 Vdc

maximum from

pins 2 and 3 to pin

N/A ±75.0 Vdc

maximum from

pins 2 and 3 to pin

Cap and Overmold

Material Polypropylene

SPECIFICATIONS MC51}

WL51{

MC50}

WL50–LO{

WL50{

Environmental

Conditions Operating Temperatures: –18_to 57_C (0_to 135_F)

Storage Temperatures: –29_to 74_C (–20_to 165_F) Humidity: 0 to 95%

Packaged Weight 188 g (6.63 oz.) 188 g (6.63 oz.) 305 g (10.76 oz.) 188 g (6.63 oz.) 305 g (10.76 oz.)

Cable and

Connector 1.5 m (5 ft.),

small-diameter,

shielded, with

miniature female

4-pin connector

(TA4F type).

WL50X: 3 m (10

ft.) small-diameter,

shielded, with

stripped and

tinned leads.

1.5 m (5 ft.),

small-diameter,

shielded, with

miniature female

4-pin connector

(TA4F type).

WL50X–LO: 3 m

(10 ft.)

small-diameter,

shielded, with

stripped and

tinned leads.

1.5 m (5 ft.),

small-diameter,

shielded, with

miniature female

4-pin connector

(TA4F type).

1.5 m (5 ft.),

small-diameter,

shielded, with

miniature female

4-pin connector

(TA4F type).

WL50X: 3 m (10

ft.) small-diameter,

shielded, with

stripped and

tinned leads.

1.5 m (5 ft.),

small-diameter,

shielded, with

miniature female

4-pin connector

(TA4F type).

Microphone and

Preamp Dimensions See figures 6 and 7 (pg. 16)

SPECIFICATIONS MC51}

WL51{

MC50}

WL50–LO{

WL50{

Net Weight WL50: 21 g (0.7

oz.) with cable

and connector.

WL50X: 28 g (1.0

oz.) with 3 m (10

ft.) stripped and

tinned cable.

WL50–LO: 21 g

(0.7 oz.) with

cable and

connector.

WL50X–LO: 28 g

(1.0 oz.) with 3 m

(10 ft.) stripped

and tinned cable.

121 g (4.3 oz.)

with cable,

connector, and

preamplifier.

WL51 21 g (0.7

oz.) with cable

and connector.

WL51X: 28 g (1.0

oz.) with 3 m (10

ft.) stripped and

tinned cable.

121 g (4.3 oz.)

with cable,

connector, and

preamplifier.

Certification

Eligibleto bear CE marking. Conforms to European EMC directive 89/336/EEC. Meets applicable test and performance

criteria in European EMC standard EN 55103 (1996) parts 1 and 2, for residential (E1) and light industrial (E2) environ-

ments.

{Measured with test circuit (see Figure 8 on page 73).

}Measured with RPM626 Preamplifier.

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