Shure MX391/S
Microflex Supercardioid Boundary Microphone with 12 ft Cable

OUR PART #  MX391/S

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Shure's MX391/S Microflex® Boundary Microphone is equipped with features like programmable, silent membrane switches, logic inputs and outputs, and LED indicators, and is a 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.

The 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.

Shure MX391/S 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 longcable runs

Shure MX391/S Specifications:

  • Polar Pattern: Supercardioid
  • Frequency Response: 50 Hz to 17 kHz (Preamp Only)
  • Impedance: 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 currentconsumption (Preamp Only)
Black Omnidirectional Replacement Cartridge
Shure R183B Black Omnidirectional Replacement Cartridge
Omnidirectional cartridge for all Microflex MX183, MX202, MX391, MX392, MX393, MX412, MX418 and WL183 microphones.
Supercardioid Cartridge, Black.
Shure R184B Supercardioid Cartridge, Black.
Supercardioid cartridge for WL183, WL184, WL185 and all Microflex MX183, MX202, MX391, MX392, MX393, MX412, MX418 Microphones. 
Cardioid Cartridge, Black.
Shure R185B Cardioid Cartridge, Black.
Cardioid cartridge for all Microflex MX183, MX202, MX391, MX392, MX393, MX412, MX418 microphones.
Shure Mic Pouch
Shure 95A2313 Shure Mic Pouch
Vinyl zipper pouch for Shure SM57, SM58, SM11 or any other similar size microphones. Also works great for storing audio adapters, mic clips, extra batteries, drum keys and hardware.

Shure MX391/S
Microflex Supercardioid Boundary Microphone with 12 ft Cable

OUR PART #  MX391/S

Product Information:

Shure's MX391/S Microflex® Boundary Microphone is equipped with features like programmable, silent membrane switches, logic inputs and outputs, and LED indicators, and is a 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.

The 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.

Shure MX391/S 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 longcable runs

Shure MX391/S Specifications:

  • Polar Pattern: Supercardioid
  • Frequency Response: 50 Hz to 17 kHz (Preamp Only)
  • Impedance: 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 currentconsumption (Preamp Only)
Black Omnidirectional Replacement Cartridge
Shure R183B Black Omnidirectional Replacement Cartridge
Omnidirectional cartridge for all Microflex MX183, MX202, MX391, MX392, MX393, MX412, MX418 and WL183 microphones.
Supercardioid Cartridge, Black.
Shure R184B Supercardioid Cartridge, Black.
Supercardioid cartridge for WL183, WL184, WL185 and all Microflex MX183, MX202, MX391, MX392, MX393, MX412, MX418 Microphones. 
Cardioid Cartridge, Black.
Shure R185B Cardioid Cartridge, Black.
Cardioid cartridge for all Microflex MX183, MX202, MX391, MX392, MX393, MX412, MX418 microphones.
Shure Mic Pouch
Shure 95A2313 Shure Mic Pouch
Vinyl zipper pouch for Shure SM57, SM58, SM11 or any other similar size microphones. Also works great for storing audio adapters, mic clips, extra batteries, drum keys and hardware.
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