MX391

Microflex Boundary Microphone

Available Options

MX391/C	Cardioid, Black
MX391/S	Supercardioid, Black
MX391/O	Omnidirectional, Black
MX391W/C	Cardioid, White
MX391W/S	Supercardioid, White
MX391W/O	Omnidirectional, White

Equipped with features like programmable, silent membrane switches, logic inputs and outputs, and LED indicators, Microflex® Boundary Microphones are the high-quality solution for a range of applications such as altars, boardrooms and distance learning centers. Every Microflex Boundary microphone features a choice of interchangeable condenser cartridges.

MX391: Includes attached 4 meter (12 ft) cable terminated with a 4-pin mini connector and separate preamplifier. A rubber strain relief is provided for applications that require removing the 4-pin mini connector and connecting the mic cable directly to screw terminals in the preamplifier.

Applications: Conference/Installed; Stage Floor
Microphone Types: Condenser:

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

Picks up the most sound in front of the microphone and some from the sides. Less susceptible to feedback in high volume environments.; OmniDirectional:

Equally sensitive to sound from all directions, but cannot be "aimed" to isolate one area.; SuperCardioid:

Screens unwanted sound sources. Ideal for individual instruments in a multi-microphone setting, or single sources in noisy environments.
Frequency Responses: Tailored:

Smooth, extended response. Tuned to accentuate specific types of instruments or voices.
Form Factors: Boundary
Model Lines: Microflex

Downloads: Microflex Microphones Product Brochure (PDF); MX391 Specification Sheet (PDF)
Related Links: FAQ's for MX391, MX392, MX393; CommShield® Technology White Paper; RF and GSM Resistance

Features

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 on/off switch and LED on/off indicator (MX392/MX393 models only)
LED logic input and switch logic output terminals for remote control or use with automatic mixers (MX392 models only)

Specifications

Polar Pattern: Cardioid (MX391/C, MX391W/C) Supercardioid (MX391/S, MX391W/S) Omnidirectional (MX391/O, MX391W/O)
Frequency Response: 50 to 17,000 Hz (Preamp Only)
lmpedance: 180 ohms actual (rated at 150 ohms) (Preamp Only)
Output Level: -6 dBV (0.5 V), 12 dB at 0 gain (Preamp Only)
Phantom power required?: 11 to 52 Vdc phantom, 2.0 mA current consumption (Preamp Only)

Accessories

	Name	Availability
	C119 Cable, 3-Pin female mini-connector to male XLR, 12-foot (3.6 m), used with MX393 Microflex microphones.	Where To Buy
	C129 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 for MX180 Series, MX202B, MX412, MX412SE, and MX391 Microflex Microphones.	Where To Buy
	RK100PK In-Line Preamplifier for Microflex Microphones. Boosts resistance to Radio Frequency Interference (RFI).	Where To Buy
	R184 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
	R183 Omnidirectional cartridge for all Microflex® MX183, MX202, MX391, MX392, MX393, MX405, MX410, MX415, MX412, MX418, and WL183 microphones. White or Black.	Where To Buy

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