Shure Americas | MX392 MX393 Microflex Boundary Microphones | Installed, Gooseneck, Desktop, Boundary

Microflex Microphones

Professional microphones for a wide variety of installed applications.

Downloads: User Guide; Brochure

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Cardioid Polar Pattern: Picks up the most sound in front of the microphone and some from the sides. Less susceptible to feedback in high volume environments.
OmniDirectional Polar Pattern: Equally sensitive to sound from all directions, but cannot be "aimed" to isolate one area.
SuperCardioid Polar Pattern: Screens unwanted sound sources. Ideal for individual instruments in a multi-microphone setting, or single sources in noisy environments.
Tailored Frequency Response: Smooth, extended response. Tuned to accentuate specific types of instruments, or voices.

MX392 MX393Microflex Boundary Microphones

Shure

Condenser: Lightweight, sensitive diaphragm. Precisely and smoothly captures sound nuances. Powered by battery or phantom power supply.

Recommended Uses: Stage Floor; Conference/Installed

MX392 and MX393 Microflex® Wired Boundary Microphones from Shure are equipped with features like programmable, silent membrane switches, logic inputs and outputs, and green LED indicators. The high-quality solution for a range of applications such as altars, boardrooms and distance learning centers, Microflex Boundary microphones feature interchangeable condenser cartridges.

MX392: Surface-mount mic; LED logic input/switch logic output terminals, screw terminal connections, attached unterminated cable
MX393: Surface-mount mic; miniature three pin connector, 12' XLR cable

Available Options

MX392/C	Cardioid, Black
MX392/S	Supercardioid, Black
MX392/O	Omnidirectional, Black
MX393/C	Cardioid, Black
MX393/S	Supercardioid, Black
MX393/O	Omnidirectional, Black

Flat frequency response across the vocal range for uncolored sound
Interchangeable cardioid, supercardioid, and omnidirectional cartridges that provide optimal choice for each application
Sleek, low-profile design for unobtrusive appearance
Balanced, transformerless output for increased immunity to noise over long cable runs

Programmable membrane on/off switch plus LED on/off indicator
LED logic input and switch logic output terminals for remote control or use with automatic mixers (MX392 models only)

MX392 & MX 393

Spec Sheet (PDF)

All measurements taken with microphone mounted on a wooden surface 76.2 cm x 76.2 cm (30 in. x 30 in.).

Frequency Response: 50 to 17,000 Hz
Polar Pattern: Cardioid (MX392/C, MX393/C); Supercardioid (MX392/S, MX393/S); Omnidirectional (MX392/O, MX393/O)
Output Impedance: EIA Rated at 150 ohms (180 ohms actual)

Sensitivity (at 1 kHz, open circuit voltage): Cardioid Cartridge: -27.5 dBV/Pa (42.2 mV); Supercardioid Cartridge: -26.5 dBV/Pa (47.3 mV); Omnidirectional: -22.0 dBV/Pa (79.4 mV); 1 Pascal=94 dB SPL
Maximum Sound Pressure Level (1 kHz at 1% Total Harmonic Distortion, 1 k ohm load): Cardioid: 117.0 dB; Supercardioid: 116.0 dB; Omnidirectional: 111.5 dB
Signal to Noise Ratio (referenced at 94 dB SPL): Cardioid: 71.0 dB; Supercardioid: 72.0 dB; Omnidirectional: 76.5 dB
Equivalent Output Noise (A-weighted): Cardioid: 23.0 dB SPL; Supercardioid: 22.0 dB SPL; Omnidirectional: 17.5 dB SPL

Dynamic Range: 94.0 dB
Common Mode Rejection: 45 dB minimum, 10 Hz to 100 kHz
Switch Attenuation: 50 dB minimum
Preamplifier Output Clipping Level: -6 dBV (0.5 V)
Polarity: Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output connector.
Logic Connections (MX392 Only): LED IN: Active low (<1.0v), TTL compatible. Absolute maximum voltage: -0.7V to 50V.; SWITCH OUT: Active low (<0.5V), sinks up to 20mA, TTL compatible. Absolute maximum voltage: -0.7V to 24V (up to 50V through 3 k ohms).
Power Requirements: 11 to 52 Vdc phantom; 2.0 mA current consumption
Environmental Requirements: Operating Temperature Range: -18 to 57 degrees C (0 to 135 degrees F); Relative Humidity: 0 to 95%
Dimensions: See User Guide

	Name	Availability
	R184B and R184W Supercardioid Cartridges Supercardioid cartridge for WL183, WL184, WL185 and all Microflex® MX183, MX202, MX391, MX392, MX393, MX405, MX410, MX415, MX412, and MX418 Microphones. White or Black.	Where To Buy
	R183B and R183W Omnidirectional Cartridge Omnidirectional cartridge for all Microflex® MX183, MX202, MX391, MX392, MX393, MX405, MX410, MX415, MX412, MX418, and WL183 microphones. White or Black.	Where To Buy
	R185B and R185W Cardioid Cartridges Cardioid cartridge for all Microflex® MX185, MX202, MX391, MX392, MX393, MX405, MX410, MX415, MX412, MX418, and WL185 microphones. White or Black.	Where To Buy
	RK100PK In-Line Preamplifier In-Line Preamplifier for Microflex Microphones. Boosts resistance to Radio Frequency Interference (RFI).	Where To Buy
	C129 Cable for Microflex MX393 Microphone Cable with CommShield® Technology, 3-Pin female mini-connector to male XLR, 12-foot (3.6 m), used with MX393 Microflex microphones.	Where To Buy
	RK183PKW In-Line Preamplifier In-Line Preamplifier for MX180 Series, MX202B, MX412, MX412SE, and MX391 Microflex Microphones.	Where To Buy
	C119 Cable for Microflex MX393 Microphone Cable, 3-Pin female mini-connector to male XLR, 12-foot (3.6 m), used with MX393 Microflex microphones.	Where To Buy