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Shure MX183

The Shure MX183 is a Microflex omnidirectional lavalier built for lecterns, presenters, and interview work where the mic needs to disappear. The subminiature condenser element clips to a tie or lapel and picks up evenly from every direction, so a speaker can turn their head without the level dropping. It is a wired lav: the capsule terminates in a detachable belt-clip preamp that hands off a balanced signal on a standard 3-pin XLR.

Because the pattern is omnidirectional, the MX183 stays natural and open sounding and resists the wind and handling noise that plague tighter capsules, which makes it a dependable choice for houses of worship, boardrooms, and broadcast. It connects through a 4 ft attached cable to the in-line preamp, and the interchangeable Microflex cartridge system means the same preamp can later host cardioid or supercardioid lavalier elements. It ships with a dual tie clip and a snap-fit windscreen.

TypeElectret condenser lavalier
Polar PatternOmnidirectional
Frequency Response50-17,000 Hz
Output Impedance150 ohms (EIA rated); 180 ohms actual
Sensitivity-27.5 dBV/Pa (42.2 mV)
Maximum SPL116.7 dB (1 kHz, 1% THD, 1 kohm load)
Cable & Connector4 ft attached cable to detachable in-line preamp with 3-pin XLR
IncludedDual tie clip, snap-fit windscreen