Model WL93 Microphones are economical omnidirectional, subminiature, lavalier, condenser microphones designed for general speech applications where a visually unobtrusive microphone is desirable. All WL93 models are supplied with a mounting block with attached tie bar, a sew-on mounting bracket, and an acoustic windscreen to minimize wind noise in outdoor applications. All WL93 models include a cable terminated with a 4-pin mini connector which connects directly to a Shure wireless body-pack transmitter.
WL93 Black, w/ 4-foot (1.2 m) Cable
Subminiature lavalier design; ideal size for theater, television, broadcasting, video, film, and sound reinforcement
Small, inconspicuous mounting hardware
Full, clear sound comparable to larger microphones
Smooth extended frequency response with presence rise specially tailored for chest-worn microphone operation
Controlled low-frequency rolloff reduces low-frequency clothing and room noise
Low distortion, wide dynamic range
Uniform omnidirectional polar pattern
Preamplifier assembly (SM93) can be pocketed, strapped to the body, or clipped to belt or waistband
Wide-range phantom powering (SM93) accepts all commonly used voltages
Specs:
Type
Condenser (electret bias)
Frequency Response
50 to 20,000 Hz
Polar Pattern
Omnidirectional, uniform with frequency
Output Impedance
3000 ohms
Output Level (1 Pascal = 94 dB SPL)
Open Circuit Voltage: -38 dBV/Pa (13 mV)
Output Clipping Level (at 1,000 Hz)
0.25 V at 120 dB
Total Harmonic Distortion
Less than 1% at 120 dB
Maximum SPL
120 dB
Dynamic Range (maximum SPL to A-weighted noise level)
102 dB
Output Noise (equivalent SPL)
18 dB typical, A-weighted
Signal-to-Noise Ratio
76 dB at 94 dB SPL (IEC 651)
Polarity
Positive pressure on microphone diaphragm produces positive voltage on pins 3 and 4 with respect to pin 1 (ground)*
*Produces positive voltage at pin 2 of Shure wireless receiver three-pin connector
Recommended Operating Voltage
2 to 10 V; 5 V nominal (pin 2 to pins 3 and 4)
Current Drain
40 microA typical
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)
Cable
Black 1.27 m (4.17 ft), attached, two-conductor, shielded, terminated by miniature connector type TA4F (WL93T: Tan 1.27 m [4.17 ft])
Case
Microphone: Black ABS thermoplastic case with stainless-steel-mesh grille