WL51 Subminiature Lavalier

Shure's WL51 lavalier microphone series sets a new standard for miniature microphones. Visually unobtrusive, the WL51s 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. Designed for applications that require minimal visibility without compromising sound quality, these microphones are available individually.

 

WL51B -  Black,  high-boost caps

WL51W - White,  high-boost caps

 

 

 

 

Subminiature lavalier mic provides low visibility with professional audio quality. Less susceptible to feedback.
  • All models include foam windscreen, swiveling lapel clip, dual tie clip, pin mount, magnet mount  
  • Subminiature size (5.8 mm diameter x 11 mm height)
  • Electret condenser cartridge
  • Unidirectional pattern
  • Two termination options: 4-pin mini connector (fits directly into Shure wireless transmitters), or unterminated (bare wire)
  • High Boost equalization caps included for optimal clarity and response
    • Provides a 10 dB boost centered at 12 kHz
    • Used in applications that require a chest-worn microphone
  • Black and white models available
  • All models include magnet mount, lapel clip, dual tie clip, pin mount, and two foam windscreens and carry case
  • requency response: 20-20,000 Hz
  • Low visibility with a variety of options for mounting
  • Low handling noise
  • Legendary Shure quality, ruggedness, and reliability
SPECIFICATIONS WL50
Measured with test circuit (see User Guide)		 WL50-LO
Measured with test circuit (see User Guide)		 MC50
Measured with RPM626 Preamplifier		 WL51
Measured with test circuit (see User Guide)		 MC51
Measured with RPM626 Preamplifier
Condenser (electret bias) 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 ohms actual (rated at 150 ohms) N/A 136 ohms actual (rated at 150 ohms)
Recommended Min.
Input Impedance		 20 kilohms 20 kilohms N/A 20 kilohms 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/
20 kilohm load		 142 dB at 1% THD/
20 kilohm load		 138 dB at 1% THD/
1 kilohm load		 138 dB at 1% THD/
20 kilohm load		 143 dB at 1% THD/1 kilohm load
Frequency Response 20 to 20,000 Hz 20 to 20,000 Hz 20 to 20,000 Hz 20 to 20,000 Hz 20 to 20,000 Hz
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 µA 60�130 µA 4.6 mA 60�130 µA 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 degrees C (0 to 135 degrees F)
Storage Temperatures: �29 to 74 degrees C (�20 to 165 degrees 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 User Guide
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


 

Frequency Response Curve

 

 

Click image for larger view

 

 

User Guide English 256 KB PDF

Release 16