Shure MX418/C

The Microflex Gooseneck microphones bring a whole new meaning to the word flexible. Beyond their fully adjustable goosenecks lies a new level of flexibility the new Microflex interchangeable condenser microphone cartridge. 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 broad variety of applications, such as houses of worship, courtrooms and conference centers. Plus, the condenser cartridges fit every model in the new Microflex product line for enhanced convenience and consistent sound. Every Microflex Gooseneck features high sensitivity and balanced, transformerless output for maximum immunity to electromagnetic hum and RF interference, even over long cable runs.

Features 
 Wide dynamic range and frequency response for accurate sound reproduction across the audio spectrum
 Balanced, transformerless output for increased immunity to noise over long cable runs
 Shock mount that provides over 20 dB isolation from surface vibration noise
 Locking flange mount for permanently securing microphone to lecterns, pulpits, or conference tables
 Snap-fit foam windscreen

Specifications 
 Frequency Response: 50 to 17,000 Hz
 Polar Pattern: Cardioid
 Output Impedance (at 1000 Hz): Rated at 150 ? (180 ? actual)
 Open Circuit Sensitivity (at 1 kHz, ref. 1V/Pa): -35.0 dB (21.1 mV)
 Maximum SPL (1 kHz at 1% THD, 1 k? load): 124.2 dB
 Equivalent Output Noise (A-weighted): 28.0 dB SPL
 Signal to Noise Ratio (referenced at 94 dB SPL): 66.0 dB
 Dynamic Range at 1 k? Load: 96.2 dB
 Common Mode Rejection: 45.0 dB minimum
 Mute Switch Attenuation (switched models only): 50.0 dB minimum
 Preamplifier Output Clipping Level (1% THD): –6.0 dBV (0.5 V)
 Polarity: 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
 Operating Temperature Range: –18° C to 57° C (0° F to 135° F)
 Relative Humidity: 0 to 95%
 Dimensions
  Microphone
   Gooseneck: 18" (45 cm)
   Head Diameter: 0.46" (11.68 mm)
   Base Length: 3.86" (98.04 mm)
   Base Diameter: 0.79" (20.07 mm)
  Mounting Flange
   Diameter: 2.62" (66.70 mm)
   Depth: 0.56" (14.40 mm)
 Furnished Accessories: Flange, Retainer, Isolation Ring, Snap-fit foam windscreen, Shock Mount, Hex Wrench #4