Wireless Lavalier Microphones
User Guide
Models WL183, WL184 and WL185
SPECIFICATIONS
Type: Condenser (electret bias)
Frequency Response: 50 to 17,000 Hz
+10
WL183 FREQUENCY RESPONSE
0
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.
–10
20
50
100
200
500 1,000
2,000
2,000
2,000
5,000 10,000
5,000 10,000
5,000 10,000
20,000
Hz
+10
0
WL184 FREQUENCY RESPONSE
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°.
–10
20
50
100
200
500 1,000
20,000
Hz
+10
WL185 FREQUENCY RESPONSE
0
–10
20
20,00
50
100
200
500 1,000
Hz
INSTALLATION
Polar Patterns (at 1 kHz): (see below)
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.
180°
180°
180°
150°
150°
150°
150°
150°
150°
120°
120° 120°
90° 90°
120°
120°
120°
2. To install the snap-fit windscreen, press it
WINDSCREEN
90°
90° 90°
90°
down on the microphone until it clicks into
place inside the upper groove on the micro-
–20 dB
–15 dB
–10 dB
–5 dB
–20 dB
–15 dB
–10 dB
–5 dB
–20 dB
–15 dB
–10 dB
60°
60°
60°
60°
60°
60°
phone. The snap-fit windscreen provides 30
dB of pop protection.
TIE CLIP
–5 dB
30°
30°
30°
30°
30°
30°
0°
0°
0°
NOTE:
OMNIDIRECTIONAL
(WL183)
SUPERCARDIOID
(WL184)
CARDIOID
(WL185)
•
The snap-fit windscreen can be removed
by spreading the slot in the plastic snap-
fit ring.
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
•
To install the smaller foam windscreen,
slip the windscreen over the top of the mi-
crophone so that it covers the side slots.
MICROPHONE
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.
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.
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
IMPEDANCE CONVERTER
D+
RED
G
BLK
S
1 GROUND
2 BIAS
1
3
CONDENSER
CARTRIDGE
SHIELD
4
3,4 AUDIO
2
MICROPHONE WIRING DIAGRAM
©2005, Shure Incorporated
27C2833 (Rev. 4)
Printed in U.S.A.
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