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Wireless Lavalier Microphones
User Guide
©2005, Shure Incorporated
27C2833 (Rev. 4)
Printed in U.S.A.
Models WL183, WL184 and WL185
GENERAL
Models WL183, WL184 and WL185 are lavalier electret condenser
microphones for use with a wireless bodypack transmitter. Each micro-
phone has a 1.2 meter (4 ft.) cable terminated with a miniature 4-pin con-
nector (TA4F). The furnished tie clip can be rotated in 90° intervals for
placement flexibility.
APPLICATIONS
WL183 (Omnidirectional): General purpose sound reinforcement,
recording, or remote monitoring applications. Low handling noise. Pickup
angle is 360°.
WL184 (Supercardioid): Sound reinforcement applications requiring
high rejection of ambient noise and narrow pickup angle. Use of wind-
screen highly recommended. Pickup angle is 115°.
WL185 (Cardioid): General purpose sound reinforcement applica-
tions requiring good rejection of ambient noise. Use of windscreen highly
recommended. Pickup angle is 130°.
INSTALLATION
1. Insert the top of the microphone through tie clip loop from below until
tie clip loop snaps into place over the lower groove on the micro-
phone. Refer to the following illustration.
2. To install the snap-fit windscreen, press it
down on the microphone until it clicks into
place inside the upper groove on the micro-
phone. The snap-fit windscreen provides 30
dB of pop protection.
NOTE:
•
The snap-fit windscreen can be removed
by spreading the slot in the plastic snap-
fit ring.
•
To install the smaller foam windscreen,
slip the windscreen over the top of the mi-
crophone so that it covers the side slots.
The foam windscreen provides 5 to 10 dB of pop protection.
3. Attach the microphone approximately 76 mm to 152 mm (3 to 6 in.)
below the neckline.
NOTE: Do not cover the microphone with your hand or clothing.
CHANGING CARTRIDGES
The WL183, WL184, and WL185 microphones use interchangeable
cartridges. To change the cartridge, unscrew it from the microphone base
and replace it with one of the replacement cartridges listed below.
REPLACEMENT PARTS AND ACCESSORIES
Omnidirectional Cartridge ......................................... R183B
Supercardioid Cartridge ........................................... R184B
Cardioid Cartridge..................................................... R185B
Snap-fit Windscreens (4) .....................................RK183WS
Foam Windscreen (4) ..........................................RK261WS
Tie Clips (2)........................................................... RK183T1
Miniature 4-pin Connector.........................................WA330
SPECIFICATIONS
Type: Condenser (electret bias)
Frequency Response: 50 to 17,000 Hz
Polar Patterns (at 1 kHz): (see below)
Output Impedance : 1800
Ω
Sensitivity (1 Pa = 94 dB SPL): ...........WL183: -40.0 dBV/Pa
...............................................................WL184: -44.5 dBV/Pa
...............................................................WL185: -45.5 dBV/Pa
Maximum Sound Pressure Level:...... WL183: 125.0 dB SPL
..............................................................WL184: 129.5 dB SPL
..............................................................WL185: 130.5 dB SPL
Output Noise (A-weighted): .................WL183: 22.5 dB SPL
................................................................WL184: 27.0 dB SPL
................................................................WL185: 28.0 dB SPL
Dynamic Range: 102.5 dB
Polarity: Positive pressure on diaphragm produces positive voltage
on pins 3 and 4 relative to pin 1.
Power Requirements: Regulated nominal +5 Vdc (1.5 Vdc to 10
Vdc) provided at microphone connector pin 2 relative to pin 1 of a
Shure wireless microphone transmitter.
WINDSCREEN
TIE CLIP
MICROPHONE
500 1,000 2,000 5,000 10,00050 100 20020
20,00
0
500 1,000 2,000 5,000 10,000
20,000
50 100 20020
0
+10
–10
0
+10
–10
0
+10
–10
500 1,000 2,000 5,000 10,000
20,00
50 100 20020
dB
Hz
dB
Hz
dB
Hz
WL183 FREQUENCY RESPONSE
WL184 FREQUENCY RESPONSE
WL185 FREQUENCY RESPONSE
–10 dB
–15 dB
–5 dB
–20 dB
150°
120°
150°
120°
180°
30°
60°
90°
30°
60°
0°
90°
CARDIOID
(WL185)
OMNIDIRECTIONAL
(WL183)
SUPERCARDIOID
(WL184)
–10 dB
–15 dB
–5 dB
–20 dB
150°
120°
150°
120°
180°
30°
60°
90
°
30°
60°
0°
90°
–10 dB
–15 dB
–5 dB
–20 dB
150°
120°
150°
120°
180°
30°
60°
90°
30°
60°
0°
90°
1
3
2
CONDENSER
CARTRIDGE
IMPEDANCE CONVERTER
G
SHIELD
BLK
RED
S
D+
4
MICROPHONE WIRING DIAGRAM
1 GROUND
2 BIAS
3,4 AUDIO