Astatic 631L

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.

Features

• For close talking/paging applications in security, mobile communications, emergency, bus call stations.
• 360° elimination of background noise and resists feedback
• Soft Curved lip guard to encourage proper spacing for best up-close use
• Rugged polyester mic element resists effects of extreme temperature, moisture, most acids, alkalines & solvents
• Molded high impact resistant Cycolac body
• Permanently attached heavy duty, 4-conducter, 2-shielded, coiled chord with stripped & tinned ends.

Specifications

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