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Shure MX393/S Low Profile, Professional Boundary Condenser Microphone (Supercardioid)

  • Our Price
  • $242.00
  • Regular price MSRP: $315.00

• Inventory changes daily and this item may be out of stock
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The Shure MX393 Microflex™ Wired Boundary Microphone from Shure is equipped with a programmable, silent membrane switch and green LED indicator. It is a high-quality solution for a range of applications such as altars, boardrooms and distance learning centers. Includes miniature three pin connector and 12' XLR cable.

All measurements taken with microphone mounted on a wooden surface 76.2 cm x 76.2 cm (30 in. x 30 in.).


Frequency Response
50 to 17,000 Hz

Polar Pattern

Output Impedance
EIA Rated at 150 ohms (180 ohms actual)

Sensitivity (at 1 kHz, open circuit voltage)
Supercardioid Cartridge: -26.5 dBV/Pa (47.3 mV)
1 Pascal=94 dB SPL

Maximum Sound Pressure Level (1 kHz at 1% Total Harmonic Distortion, 1 k ohm load)
Supercardioid: 116.0 dB

Signal to Noise Ratio (referenced at 94 dB SPL)
Supercardioid: 72.0 dB

Equivalent Output Noise (A-weighted)
Supercardioid: 22.0 dB SPL

Dynamic Range
94.0 dB

Common Mode Rejection
45 dB minimum, 10 Hz to 100 kHz

Switch Attenuation
50 dB minimum

Preamplifier Output Clipping Level
-6 dBV (0.5 V)

Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output connector.

Power Requirements
11 to 52 Vdc phantom
2.0 mA current consumption

Environmental Requirements
Operating Temperature Range: -18 to 57 degrees C (0 to 135 degrees F)
Relative Humidity: 0 to 95%

  • Programmable membrane on/off switch plus LED on/off indicator   
  • Balanced, transformerless output for increased immunity to noise over long cable runs
  • Sleek, low-profile design for unobtrusive appearance 
  • Interchangeable cardioid, supercardioid, and omnidirectional cartridges that provide optimal choice for each application
  • Flat frequency response across the vocal range for uncolored sound

Manufacturer: Shure
Model: MX393/S
Warranty: See manufacturer website for details
SKU: I059798-N-0-B
UPC: 042406051354