Shure MX418D/N
Gooseneck Microphone with LED Indicator, No Cartridge


The Shure MX418D/N is a miniature gooseneck-mounted electret condenser microphone for speech and vocal pickup. Designed for easy replacement and available in cardioid, supercardioid and omnidirectional polar patterns, the interchangeable cartridges offer wide frequency response and accurate sound reproduction for a wide variety of applications, such as houses of worship, courtrooms and conference centers.  This particular product includes no mic cartridge (cartridges sold separately-contact your sales representative for more information) .  Plus, the condenser cartridges fit every model in the Microflex product line for enhanced convenience and consistent sound. The MX418D/N features an attached 10 ft. XLR cable, logic functions, programmable switch and LED indicator, and an attached desktop base.

Shure MX418D/N Features:

  • Balanced, transformerless output for increased immunity to electromagnetic hum and RF interference over long cable runs
  • Shock mount that provides over 20 dB isolation from surface vibration noise
  • Attached desktop base
  • Snap-fit foam windscreen
  • 18 inches
  • No mic cartridge
  • Wide dynamic range and frequency response for accurate sound reproduction across the audio spectrum
  • Interchangeable cartridges provide the right polar pattern for every application
  • Programmable switch and LED indicator
  • New brighter LED improves visibility under strong ambient lighting
  • Logic input and output terminals for remote control or use with automatic microphone mixers

Shure MX418D/N Specifications:

  • Frequency Response:  50 to 17,000 Hz
  • Output Impedance (at 1,000 Hz):  Rated at 150Ohms (180 Ohms actual)
  • Open Circuit Sensitivity:
    • At 1 kHz, ref. 1 V per Pascal*
    • Cardioid: –33.5 dBV (21.1 mV)
    • Supercardioid: –32.5 dBV (23.7 mV)
    • Omnidirectional: –28.0 dBV (39.8 mV)
      * 1 Pascal=94 dB SPL
  • Maximum SPL (1kHz at 1% THD, 1 kOhm load):
    • Cardioid: 123.0 dB
    • Supercardioid: 122.0 dB
    • Omnidirectional: 117.5 dB
  • Equivalent Output Noise (A-weighted):
    • Cardioid: 29.0 dB SPL
    • Supercardioid: 28.0 dB SPL
    • Omnidirectional: 70.5 dB SPL
  • Signal to Noise Ratio (referenced at 94 dB SPL):
    • Cardioid: 65.0 dB
    • Supercardioid: 66.0 dB
    • Omnidirectional: 70.5 dB
  • Dynamic Range with 1 kOhm load:  94.0 dB
  • Common Mode Rejection:  45.0 dB minimum
  • Mute Switch Attenuation:  50.0 dB minimum
  • Preamplifier Output Clipping Level (1% THD): –6.0 dBV (0.5 V)
  • Polarity:  Positive sound pressure on diaphram produces positive voltage on pin 2 relative to pin 3 of XLR output connector.
  • Power Requirements:  11 to 52 Vdc phantom, 2.0 mA
  • Environmental Requirements:
    • Operating Temperature Range: –18° to 57°C (0° to 135°F)
    • Relative Humidity: 0 to 95%
    • Dimensions: See Accompanying 'Shure MX400D Series Microphones Spec Sheet'
    • Weight:  0.82 kg (1.82 lbs.) net, 1.64 kg (3.64 lbs.)packaged
  • Cable Type:  The attached custom cable contains a shielded audio pair and three unshielded conductors for logic control.
    Overall diameter=0.6 mm (0.165 in.)
  • Certification:  Eligible to bear CE Marking. Conforms to European EMC Directive 89/336/EEC. Meets applicable tests and performance criteria in European Standard EN55103 (1996) parts 1 and 2, for residential (E1) and light industrial (E2) environments
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