Nicolas Kyvernitis Electronics Enterprises

MX391 C Boundary Microphone
NMK Original Products

Shure - MX391 C Boundary Microphone

Manufacturer warranty Download PDF

Item #: MX391/C
Categories: Install Microphones , Microphones
Brand: Shure

Microflex Boundary Microphone. Low profile, professional boundary microphone with interchangeable cartridges. In-lne preamp.

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.


-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)

MX391 C Boundary Microphone from Shure is 100% original and is available at NMK Electronics. Speak to our expert for booking a live demonstration. After sales customer service is an integral part of our business ethic and is taken very seriously.

Product Specifications

Maximum SPL 118.8 dB SPL
Polar Pattern Cardioid
Frequency Range 50 Hz to 17 kHz
Signal to Noise Ratio 71.4 dB
Equivalent Noise Level 22.6 dB A-Weighted

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