Shure MX392 O
The MX392/O is the omnidirectional member of Shure's Microflex boundary family, a low-profile surface-mount condenser that sits flat on a conference table, lectern, or stage floor and stays out of the sightline. The omnidirectional cartridge picks up evenly from every direction, so a single mic covers several talkers seated around it without anyone leaning in. The condenser cartridge is interchangeable, letting one boundary base swap to a cardioid or supercardioid pattern when a room needs tighter pickup.
A programmable membrane switch with a logic-control LED handles mute or push-to-talk duties and can tie into an automatic mixer or control system. The mic feeds through a 12 foot attached, unterminated cable so an installer can wire the connector to suit the rack, and it runs on standard 11-52V phantom power.
| Transducer | Electret condenser boundary |
|---|---|
| Polar Pattern | Omnidirectional |
| Frequency Response | 50-17,000 Hz |
| Output Impedance | 150 ohms rated (180 ohms actual) |
| Cartridge | Interchangeable; cardioid and supercardioid available |
| Switch | Programmable membrane switch with logic-control LED |
| Cable | 12 ft attached, unterminated (back exit) |
| Power | 11-52V DC phantom, 2.0 mA |








