Shure WL50 User Manual

Page 2

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SPECIFICATIONS

WL50

{

WL50–LO

{

MC50

}

WL51

{

MC51

}

Type

Condenser (electret bias)

Condenser (electret bias)

Condenser (electret bias)

Condenser (electret bias)

Condenser (electret bias)

Polar Pattern

Omnidirectional

Omnidirectional

Omnidirectional

Cardioid

Cardioid

Output Impedance

N/A

N/A

136

W

actual (rated at 150

W

)

N/A

136

W

actual (rated at 150

W

)

Recommended Min. Input
Impedance

20 k

W

20 k

W

N/A

20 k

W

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

W

load

142 dB at 1% THD/
20k

W

load

138 dB at 1% THD/
1 k ohm load

138 dB at 1% THD/
20k

W

load

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)

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

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

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).

+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

m

A

60–130

m

A

4.6 mA

60–130

m

A

4.6 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 of preamplifier.

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.

Overvoltage Protection

N/A

N/A

±

75.0 Vdc maximum from pins

2 and 3 to pin 1.

N/A

±

75.0 Vdc maximum from pins

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

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 2 and 3

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

:

Eligible to 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) environments.

{

Measured with test circuit (see Figure 1).

}

Measured with RPM626 Preamplifier.

99 mm

(3.89 in.)

20 mm DIA.

(.79 in.)

14 mm

(.55 in.)

19 mm DIA.

(.75 in.)

1.52 m (5 ft.) for WL50/MC50 and WL51/MC51 Series

5.8 mm (.23 in.)

3.04 m (10 ft.) for WL50X/WL51X Series

5.8 mm (.23 in.)

PREAMPLIFIER DIMENSIONS

MICROPHONE AND CABLE DIMENSIONS

RELA

TIVE RESPONSE IN dB

On Axis

180

o

Off Axis

Omnidirectional

RELA

TIVE RESPONSE IN dB

High Boost

Equalization Cap

Mild Boost

Equalization Cap

TYPICAL FREQUENCY RESPONSE

Cardioid

2500 Hz
6400 Hz

10000 Hz

150

o

120

o

150

o

120

o

180

o

30

o

60

o

90

o

30

o

60

o

0

90

o

–5 dB

–10 dB

–15 dB

–20 dB

250 Hz
500 Hz
1000 Hz

150

o

120

o

150

o

120

o

180

o

30

o

60

o

90

o

30

o

60

o

0

–5 dB

–10 dB

–15 dB

90

o

–20 dB

TYPICAL POLAR PATTERN

CARDIOID

CONDENSER CAR-

TRIDGE

IMPEDANCE

CONVERTER

RED

BLK

SHIELD

GROUND

AUDIO OUT

+5 Vdc

S

G

D

+

WL50X SERIES MICROPHONE WIRING DIAGRAM

(UNTERMINATED)

RED

IMPEDANCE

CONVERTER

CONDENSER

CARTRIDGE

BLK

SHIELD

3

4 2

1

S

G

D

Audio Out

+5 Vdc

WL50/MC50 and WL51/MC51 SERIES MICROPHONE

WIRING DIAGRAM WITH TA4F CONNECTOR

100 k

1.0 uf

5 Vdc

20 k

1

2

3

4

STANDARD TEST CIRCUIT

FIGURE 1

FIGURE 2

FIGURE 3

FIGURE 4

FIGURE 5

FIGURE 6

FIGURE 7

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