Used Shure MX391/C Cardioid Condenser Boundary Microphone with 50 to 17,000 Hz Frequency Response, Black

SKU: US1941704 MFR: MX391/C
$58.00
New: $252.00
Used Savings: $194 (77%)
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What`s in the box:

  • Shure MX391/C Cardioid Condenser Boundary Microphone
  • (RK183PK) Preamplifier (4-Pin Mini to XLR-3M)

Key Features

  • Capture crystal-clear audio with this Shure boundary microphone, perfect for conference rooms.
  • Experience exceptional sound quality and clarity with its wide 50 Hz to 17 kHz frequency response.
  • Achieve pristine recordings with the cardioid polar pattern, minimizing unwanted background noise.
  • Enjoy durable performance with this Shure condenser microphone, built to last in any environment.
  • Ensure reliable connectivity using the included preamplifier for seamless integration with your system.
  • Benefit from low noise operation, capturing every nuance with a high signal-to-noise ratio of 71.4 dB.
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INCLUDES FREE WARRANTY

  • This used item comes with a free 90-day warranty. ?
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Reviews about this item

Review Summary

2017-06-25T15:59:44

Rated 5 out of 5

Good item for church

We had one of these for use on the communion table for some time and it works great. So when the goose-neck mic on a floor lectern went bad, we got a second one of these for a replacement. May just be from my limited experience, but it seems necessary to orient with the cord away from the speaker.

Rex P.

Shure MX391/C Specifications

  • Transducer

    Condenser

  • Polar Pattern

    Cardioid

  • Frequency Response

    50 Hz to 17 kHz

  • Output Impedance (at 1000 Hz)

    180 ohms actual (rated at 150 ohms)

  • Open Circuit Sensitivity

    -29.6 dB (33.5 mV)

  • Maximum Sound Pressure Level

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

  • Signal to Noise Ratio

    71.4 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

    22.6 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)

About Shure MX391/C Cardioid Condenser Boundary Microphone with 50 to 17,000 Hz Frequency Response, Black

Shure MX391/C Cardioid Condenser Boundary Microphone with 50 to 17,000 Hz Frequency Response, Black 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)

Warranty Information

This used item has a FREE 90-day warranty. See details.

Key Features

  • Capture crystal-clear audio with this Shure boundary microphone, perfect for conference rooms.
  • Experience exceptional sound quality and clarity with its wide 50 Hz to 17 kHz frequency response.
  • Achieve pristine recordings with the cardioid polar pattern, minimizing unwanted background noise.
  • Enjoy durable performance with this Shure condenser microphone, built to last in any environment.
  • Ensure reliable connectivity using the included preamplifier for seamless integration with your system.
  • Benefit from low noise operation, capturing every nuance with a high signal-to-noise ratio of 71.4 dB.