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CAD Audio 631L Noise-cancelling Dynamic Palmheld Microphone

Discontinued (Hide From Search)


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The 631L is designed for close talking, handheld applications in quality sound installations where background noise is a problem. The frequency response, especially tailored for voice communications, provides a crisp, clear, highly intelligible sound with 360 degrees minimization of background noise. A soft lip guard is positioned to assure proper close talk voice spacing by the operator. The dynamic cartridge has a rugged polyester diaphragm which resists moisture, temperature extremes, most acids, alkalines and solvents. Molded in high impact Cycolac, the 631L comes with a permanently attached, heavy duty, four conductor, two shielded coil cord. The low impedance 631L has a DPDT long life, trouble-free switch and is factory wired normally open.


  • Operating Principle: Moving Coil Dynamic
  • Polar Pattern: Noise Canceling
  • Frequency Response: 200Hz - 5.5KHz
  • Sensitivity: -62 dBV (.8 mV) @ 1 Pa
  • Impedance: 180 ohms

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