Shure Incorporated Microflex Series Lavalier Microphone (Omnidirectional) MX183

Microflex® Lavalier microphones bring a new level of sophistication to personal voice reproduction. Like all Microflex family microphones, the Lavaliers use Shure's interchangeable condenser cartridges, available in cardioid, supercardioid or omnidirectional polar patterns. Compatible with all Shure wireless bodypack transmitters, their high sensitivity and wide frequency response guarantee great sound.
Type
Condenser (electret bias)
Frequency Response
50 to 17,000 Hz
Polar Pattern
Omnidirectional
Output Impedance
EIA rated at 150 ohms (180 ohms actual)
Open Circuit Sensitivity (at 1 kHz, ref. 1V/Pascal*)
-27.5 dB (42.2 mV)
All settings -12 dB at 0 gain *1 Pascal = 94 dB SPL
Max SPL (1kHz at 1%THD, 1 k ohm load)
116.7 dB
All settings +6 dB at 0 gain
Equivalent Output Noise (A-weighted)
20.5 dB
Signal to Noise Ratio (referenced at 94 dB SPL)
73.5 dB
Dynamic Range at 1 k ohm load
96.2 dB
100 dB at 0 gain
Power Requirements
11 to 52 Vdc phantom, 2.0 mA
Common Mode Rejection
45.0 dB minimum
Polarity
Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector.
Environmental Conditions
Operating Temperature Range: -18 to 57 degrees C (0 to 135 degrees F)
Storage Temperature Range: -29 to 74 degrees C (-20 to 165 degrees F)
Cable
Shielded 1.2 meter (4 ft.) cable terminated with a 4-Pin Female Mini Connector (TA4F)