SHURE 

SHURE MX391/C SUBMINIATURE BOUNDARY CONDENSER MICROPHONE, HALF CARDIOID, MINIATURE BOUNDARY MI

Mfg Part Number:  MX391/C  
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Price: $230.40
Quantity:
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Last Updated: May 30, 2026
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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.

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Main Specification
General Information
Manufacturer Shure, Inc
Manufacturer Part Number MX391/C
Manufacturer Website Address http://www.shure.com
Brand Name Shure
Product Line Microflex
Product Series MX391
Product Model MX391/C
Product Name MX391 Microflex Boundry Microphone
Product Type Microphone
Technical Information
Connectivity Technology Wired
Cable Length 12 ft
Minimum Frequency Response 50 Hz
Maximum Frequency Response 17 kHz
Impedance 180 Ohm
Phantom Power Yes
Microphone
Microphone Technology Electret Condenser
Polar Pattern Cardioid
Microphone Type Surface Mount
Microphone Type Desktop
Microphone Sensitivity -30 dB
Sound Pressure Level 119 dB
Interfaces/Ports
Host Interface XLR
Physical Characteristics
Color Family Black
Product Color Black
Product Material Rubber
Height 0.8"
Width 2.1"
Depth 3.1"
Weight (Approximate) 4.16 oz
Miscellaneous
Package Contents
  • Microflex MX391 Microphone
  • Preamplifier
  • Rubber Strain
  • Cable with 4-Pin Mini Connector
Certifications & Standards
  • CE
  • EMC Directive 89/336/EEC
  • EN55103 Part 1 & 2
Country of Origin Mexico
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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