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Shure MX393/C
Microflex Cardiod Boundary Microphone - Interchangeable Cartridges

Part #: MX393/C
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MSRP: $420.00
Our Price: $287.00
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Top MX393/C Specifications
  • Transducer: Electret Condenser
  • Polar Pattern: Cardioid
  • Frequency Range: 50 Hz to 17 kHz
  • Signal to Noise Ratio: 71 dB
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The Shure MX393/C Microflex Cardiod Boundary Microphone was designed as a surface-mounted electret condenser microphone that is ideal for mounting on conference tables, stage floors, and lecterns. The MX300 microphone series have tailored for high sensitivity and wide frequency ranges which make them suitable for picking up speech and vocals in sound reinforcement and recording applications. This version comes with the cardiod cartridge that features 130 degrees of directional sound pic up, but has the option to swap out different cartridges if installations require (additional cartridges must be purchased separately). Also included with this unit is an internal preamplifier, in addition to programmable logic input and output.  MX300 Series microphones take advantage of the principle that, at a barrier or boundary, the sound pressure level doubles. When placed near a sufficiently large boundary surface, the microphone has 6 dB higher sensitivity and approximately 3 dB greater direct-to-reverberant sound ratio. 

Primary Benefits of the MX393/C Microflex boundary Microphone Include: 

  • Flat frequency response across the vocal
  • range for uncolored sound
  • Interchangeable cartridges that provide a
  • choice of polar pattern for each application
  •  Sleek, low-profile design for surface mounting
  •  Programmable mute button
  •  LED indicator
  •  Logic input/output for remote control or use with automatic mixers
  •  RF filtering



  • Equivalent Noise Level: 23 dB A-Weighted
  • Maximum SPL: 119 dB SPL 1%
  • Impedance: 180 ohms
  • Sensitivity: -30 dB, re: 1 V/Pa
  • Power Requirements 11-52 V
  • Output Connectors: 3-pin XLR
  • Operating Relative Humidity: 0 to 95%
  • Operating Temperature: 0 to 135 F (-17.78 to 57.22 C)
  • Storage Temperature: -20 to 165 F (-28 to 73.89 C)
  • Operating Current Consumption: 2 mA
  • Dynamic Range: 96 dB
  • Included Accessories: Paint Mask, Switch Paint Mask, 5 x Rubber Pads with Adhesive
  • Warranty: Limited 2-Year

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