Shure MX391/C Microflex Omnidirectional Boundary Microphone Cardioid



  • Shure


Availability: Out stock

Out of stock

SKU: 16031mcs Category:

This unobtrusive floor-mountable microphone is a reliable, high-performance tool for capturing musical theater, theater, opera stages and television studios. It is a small electret condenser microphone designed for mounting on conference tables, stage floors and lecterns. Their high sensitivity and wide frequency range make them especially suitable for picking up speech and vocals in sound reinforcement and recording applications.

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.

Choir and theater directors, this is a great device for making the most of your presentations. Your troupes have worked hard. Make sure your audience hears the details!



  • Frequency response: 50 to 17,000 Hz
  • Max SPL: 118.8 dB
  • Connectivity: XLR

Pattern and type

  • Capsule: Electret condenser
  • Pattern: Cardioid
  • Type: Boundary
  • Applications: Stage, studio, theatrical
  • Phantom power required: Yes (11V/52V)

Size and weight

  • Width: 2.09″ (5.3 cm)
  • Height: .75″ (1.9 cm)
  • Depth: 3.13″ (7.94 cm)

Included accessories

  • Case: Pouch
  • Clip: Not applicable
  • Power supply: No
Pro Coverage
Manufacturer’s Warranty
One year warranty on wireless mics, mixers, and circuitry products.
2 year warranty on wired mics.
Warranty terms vary. Check with manufacturer for specific product warranty.


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