By: Shure
Microphones, Headphones & Wireless systems
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Microflex Lavalier Microphones
The Shure Microflex Microphone Series MX 183 bring a new level of sophistication to personal voice reproduction. Like all Microflex family microphones, the MX-183 Lavaliers use Shure's interchangeable condenser cartridges, available in cardioid, supercardioid or omnidirectional polar patterns. That means you can be sure there is a Microflex Lavalier that's right for your application. Compatible with all Shure wireless bodypack transmitters, their high sensitivity and wide frequency response guarantee great sound.

Wide dynamic range and frequency response for accurate sound reproduction
Interchangeable cartridges that provide a choice of polar pattern for each application
Rotatable tie-clip that pivots in 90° increments for placement flexibility
Dual tie-clip and belt-clip preamp
Supplied with snap-fit foam windscreen that controls breath noise
Balanced, transformerless output for increased immunity to noise over long cable runs
RF filtering
Type Condenser (electret bias)
Frequency Response 50–17000 Hz
Polar Pattern MX183= Omnidirectional; MX185= Cardioid; MX184= Supercardioid
Output Impedance EIA Rated at 150 o (180 O actual)
Output Configuration Active balanced
Sensitivity (at 1 kHz , open circuit voltage) Cardioid= –35 dBV/Pa (18 mV); Omnidirectional= –28 dBV/Pa (42 mV); Supercardioid= –34 dBV/Pa (21 mV); 1 Pascal=94 dB SPL
Maximum SPL (1 kHz at 1% THD, 1 kO load) Cardioid= 124 dB; Omnidirectional= 117 dB; Supercardioid= 123 dB
Equivalent Output Noise (A-weighted) Cardioid= 28 dB SPL; Omnidirectional= 21 dB SPL; Supercardioid= 27 dB
Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz) Cardioid= 66 dB; Omnidirectional= 74 dB; Supercardioid= 68 dB
Dynamic Range (1 kO load at 1 kHz) 96 dB
Common Mode Rejection (10 Hz–100 kHz) 45 dB minimum
Preamplifier Output Clipping Level (1% THD) –6 dBV (0.5 V)
Polarity Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector
Environmental Conditions Operating Temperature= -18–57 °C (0–135 °F); Storage Temperature= -29–74 °C (-20–165 °F); Relative Humidity= 0–95%
Power Requirements 11–52 Vdc phantom, 2.0 mA
Cable 1.2 m (4 ft)

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Prices and specifications subject to change without notice.