Shure WL50 User Manual
WA350 Carrying Case (WL51 only)
Models WL50/WL51 and
MC50/MC51 User Guide
MAGNET MOUNT
THE MAGNET MOUNT SHOULD NOT
2005, Shure Incorporated
27F3114 (Rev. 5)
GENERAL
Shure models WL50/MC50 (omni) and WL51/MC51 (unidirectional) are subminiature, electret condenser lavalier microphones. They provide uncompromised sound quality and high
reliability with minimal visibility in sound reinforcement applications such as television broadcasting and stage performances. Despite its small size, the microphone’s condenser element provides full, clear and natural reproduction of speech. Each microphone is supplied
with two foam windscreens 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 preamplifier with a three-pin male XLR audio
connector.
FEATURES
S Extended frequency response with user changeable equalization caps for response
shaping (omni only)
S Low visibility with a variety of options for mounting
S WL50—(omnidirectional) offered in black, beige, and white with matching accessories
S WL51—(unidirectional) offered in black and white with matching accessories
S Low handling noise
S Legendary 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 4), 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 Ω to 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 6 and 7.
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/WL51X wiring diagram in Figure 6. For additional information on wiring the WL50X/WL51X to an alternate connector, contact Shure’ s Applications Department at (847) 600–8440 or 1–800–516–2525.
Printed in U.S.A.
WARNING:
BE USED BY PERSONS FITTED
WITH AN IMPLANTED MEDICAL
DEVICE, SUCH AS A PACEMAKER
OR DEFIBRILLATOR.
DUAL TIE CLIP
SWIVELING LAPEL
CLIP
PIN MOUNT
SUPPLIED MOUNTING ACCESSORIES
MOUNTING THE MICROPHONE
The WL50/WL51 and MC50/MC51 microphones come with the following
mounting accessories:
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.
FURNISHED ACCESSORIES
Foam Windscreen (2 pcs.): Black, beige or white
* Mild Boost Equalization Cap (2 pcs.): Black, beige or white
High Boost Equalization Cap (2 pcs.): Black, beige or white
Swiveling Lapel Clip: Black, beige or white
Dual Tie Clip: Black, beige or white
Preamplifier with hardware (MC50/MC51 only) RPM626. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Magnet Mount
Black 90A4694. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Beige 90B4694. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
White 90C4694. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin Mount 95A2162. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL ACCESSORIES
Phantom Power Supply PS1A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery-Operated Preamplifier MX1BP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACEMENT PARTS
High Boost Equalization Caps
Black (5 pcs.) RPM208. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Beige (5 pcs.) (omni only) RPM212. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
White (5 pcs.) RPM216. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mild Boost Equalization Caps (omni only)
* Black (5 pcs.) RPM220. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Beige (5 pcs.) RPM214. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
* White (5 pcs.) RPM218. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foam Windscreen
Black (5 pcs.) RPM304. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Beige (5 pcs.) RPM306. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
White (5 pcs.) RPM308. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Swivel Lapel Clips and 2 Dual Tie Clips
Black RPM500. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Beige RPM502. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
White RPM504. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mini 4–pin (TA4F type) Connector WA331. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Carry Case (WL51 only) WA350. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
* Not used with WL51, MC51 models
SPECIFICATIONS WL50
Type Condenser (electret bias) Condenser (electret bias) Condenser (electret bias) Condenser (electret bias) Condenser (electret bias)
{
WL50–LO
{
MC50
}
WL51
{
MC51
}
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
Output Level –45.0 dBV/Pa
Maximum SPL 133 dB at 1% THD/
20 k 20 k N/A 20 k N/A
(1 Pa=94 dB SPL)
20k load
–54.0 dBV/Pa
(1 Pa=94 dB SPL)
142 dB at 1% THD/
20k load
–41.0 dBV/Pa
(1 Pa=94 dB SPL)
138 dB at 1% THD/
1 k ohm load
–50.0 dBV/Pa
(1 Pa=94 dB SPL)
138 dB at 1% THD/
20k load
–46.0 dBV/Pa
(1 Pa=94 dB SPL)
143 dB at 1% THD/
1 k ohm load
Frequency Response 20 to 20,000 Hz (see Figure 5)
Dynamic Range 103.0 dB 103.0 dB 108.0 dB 103.0 dB 108.0 dB
Output Noise
(equivalent SPL, A-weighted)
Signal-to-Noise
Ratio
Power Requirements +5 Vdc on pin 2, return on pin 1
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
64 dB at 94 dB SPL 55 dB at 94 dB SPL 64 dB at 94 dB SPL 59 dB at 94 dB SPL 59 dB at 94 dB SPL
(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).
+5 Vdc on pin 2, return on pin 1
(ground).
11 to 52 Vdc (positive on pins 2
and 3, return on pin 1).
Current Drain 60–130 A 60–130 A 4.6 mA 60–130 A 4.6 mA
Polarity—Positive pressure on
the diaphragm produces a
positive voltage at:
Overvoltage Protection N/A N/A ±75.0 Vdc maximum from pins
Pin 3 relative to pin 1 at the output connector of the microphone. pin 2 relative to pin 3 of the output
connector of preamplifier.
2 and 3 to pin 1.
pin 3 relative to pin 1 at the
output connector of the
microphone.
N/A ±75.0 Vdc maximum from pins
pin 2 relative to pin 3 of the output
connector of preamplifier.
2 and 3 to pin 1.
Cap and Overmold Material Polypropylene
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
Microphone and Preamp
Dimensions
Net Weight WL50: 21 g (0.7 oz.) with cable
Certification: Eligible to bear CE marking. Conforms to European EMC directive
89/336/EEC. Meets applicable test and performance criteria in European EMC standard EN
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.
See Figures 2 and 3
and connector.
WL50X: 28 g (1.0 oz.) with 3 m
(10 ft.) stripped and tinned
cable.
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.
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.
1.5 m (5 ft.), small-diameter,
shielded, with miniature female
4-pin connector (TA4F type).
121 g (4.3 oz.) with cable,
connector, and preamplifier.
{
Measured with test circuit (see Figure 1).
}
Measured with RPM626 Preamplifier.
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.
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.
1.5 m (5 ft.), small-diameter,
shielded, with miniature female
4-pin connector (TA4F type).
121 g (4.3 oz.) with cable,
connector, and preamplifier.
55103 (1996) parts 1 and 2, for residential (E1) and light industrial (E2) environments.
1.0 uf
3
1
4
2
20 k
100 k
5 Vdc
STANDARD TEST CIRCUIT
FIGURE 1
RELATIVE RESPONSE IN dB
RELATIVE RESPONSE IN dB
TYPICAL FREQUENCY RESPONSE
Omnidirectional
Cardioid
FIGURE 4
20 mm DIA.
(.79 in.)
99 mm
(3.89 in.)
PREAMPLIFIER DIMENSIONS
FIGURE 2
On Axis
180o Off Axis
14 mm
(.55 in.)
19 mm DIA.
(.75 in.)
5.8 mm (.23 in.)
5.8 mm (.23 in.)
Mild Boost
Equalization Cap
High Boost
Equalization Cap
IMPEDANCE
CONDENSER CAR-
TRIDGE
WL50X SERIES MICROPHONE WIRING DIAGRAM
CONVERTER
D
G
+
S
(UNTERMINATED)
o
150
o
120
o
90
o
60
o
30
250 Hz
500 Hz
1000 Hz
RED
BLK
SHIELD
FIGURE 6 FIGURE 7
1.52 m (5 ft.) for WL50/MC50 and WL51/MC51 Series
3.04 m (10 ft.) for WL50X/WL51X Series
MICROPHONE AND CABLE DIMENSIONS
FIGURE 3
o
180
–20 dB
–15 dB
–10 dB
–5 dB
0
o
150
o
120
o
90
o
60
o
30
o
150
o
120
o
90
o
60
o
30
CARDIOID
TYPICAL POLAR PATTERN
FIGURE 5
IMPEDANCE
CONVERTER
D
G
S
WIRING DIAGRAM WITH TA4F CONNECTOR
+5 Vdc
AUDIO OUT
GROUND
CONDENSER
CARTRIDGE
WL50/MC50 and WL51/MC51 SERIES MICROPHONE
180
–20 dB
–15 dB
–10 dB
–5 dB
0
o
RED
BLK
SHIELD
150
o
30
o
o
120
o
90
o
60
2500 Hz
6400 Hz
10000 Hz
+5 Vdc
Audio Out
3
1
4
2
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