Microflex MX391 Supercardioid Condenser Boundary Microphone Black

SKU: SHMX391S MFR: MX391/S
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Key Features

  • Capture pristine audio with this Shure boundary microphone, ideal for conference rooms.
  • Experience exceptional sound quality with the MX391/S condenser microphone's supercardioid pattern.
  • Ensure clear recordings; this low-noise microphone delivers professional-grade performance.
  • Achieve seamless connectivity with this XLR microphone, perfect for various audio setups.
  • Rely on the robust build quality of Shure Microflex mics for long-lasting, dependable use.
  • Get premium audio without breaking the bank; excellent price for a quality boundary mic.
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Review Summary

Shure MX391/S Specifications

  • Transducer

    Condenser

  • Polar Pattern

    Supercardioid

  • Frequency Response

    50 Hz to 17 kHz

  • Output Impedance (at 1000 Hz)

    180 ohms actual (rated at 150 ohms)

  • Open Circuit Sensitivity

    -28.3 dB (38.5 mV)

  • Maximum Sound Pressure Level

    117.5 dB (1 kHz at 1% Total Harmonic Distortion, 1 k ohm load)

  • Signal to Noise Ratio

    72.7 dB (referenced at 94 dB SPL)

  • Environmental Requirements

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

  • Equivalent Output Noise

    21.3 dB SPL (A-weighted)

  • Dynamic Range at 1 k ohm Load

    96.2 dB
    100 dB at 0 gain

  • Common Mode Rejection

    45 dB minimum, 10 Hz to 100 kHz

  • Preamplifier Output Clipping Level

    -6 dBV (0.5 V)
    12 dB at 0 gain

  • Polarity

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

  • Power Requirements

    11 to 52 Vdc phantom
    2.0 mA current consumption

  • Dimensions( L x W x H)

    3.126 x 2.088 x 0.750" (7.940 x 5.304 x 1.905cm)

  • Weight

    Microphone: 4.16 oz. (117.9 g)
    RK183PK Pre-Amplifier: 3.21 oz. (91 g)

  • UPC Code

    42406051507

About Shure MX391/S

Bring professional-grade audio quality to your recording or live sound setup with the Shure MX391 Supercardioid Condenser Boundary Microphone. This high-quality, durable microphone is designed to capture a wide frequency range from 50 to 17,000 Hz, making it a versatile choice for various applications, from altars and boardrooms to distance learning centers.

The MX391/S features a supercardioid polar pattern, designed to pick up sound from a specific direction while minimizing noise from other directions. This ensures your recordings are clear and focused, reducing background noise for a more refined audio output.

This reliable microphone comes with an in-line preamp and a 12 ft (4 m) attached cable that terminates to a 4-pin mini connector, offering flexibility and convenience in setup. It also boasts programmable, silent membrane switches, logic inputs and outputs, and LED indicators, enhancing its functionality and ease of use.

Finished in a sleek color, the Shure MX391/S Supercardioid Condenser Boundary Microphone not only delivers superior sound performance but also blends seamlessly into any setting. Whether you're recording a podcast, conducting a conference call, or amplifying sound for a live event, this microphone is a dependable choice that delivers consistent, high-quality sound.

Shure MX391/S Features

  • Flat frequency response across the vocal range for uncolored sound
  • Sleek, low-profile design for unobtrusive appearance
  • Balanced, transformerless output for increased immunity to noise over long cable runs
  • Programmable on/off switch and LED on/off indicator (MX392/MX393 models only)
  • LED logic input and switch logic output terminals for remote control or use with automatic mixers (MX392 models only)

Key Features

  • Capture pristine audio with this Shure boundary microphone, ideal for conference rooms.
  • Experience exceptional sound quality with the MX391/S condenser microphone's supercardioid pattern.
  • Ensure clear recordings; this low-noise microphone delivers professional-grade performance.
  • Achieve seamless connectivity with this XLR microphone, perfect for various audio setups.
  • Rely on the robust build quality of Shure Microflex mics for long-lasting, dependable use.
  • Get premium audio without breaking the bank; excellent price for a quality boundary mic.

What's in the box:

  • Shure Microflex MX391/S Supercardioid Condenser Boundary Microphone
  • Zipper Bag
  • Inline Preamplifier
  • Hex Wrench
  • Shure 2 Year Limited Warranty