Desktop and Palm Held Series: 631L

The 631L, sold with our M2115 radio line,  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.

APPLICATIONS:  The Astatic Model 631L, because of its’ professional sound and rugged construction and highly effective background noise reduction capabilities, is an excellent choice for any application requiring a hand held, noise cancelling microphones for difficult noise environments such as factories, airports, restaurants, mills, etc. and for two-way communications in taxicabs, buses, airplanes, helicopters, construction, police and fire vehicles, etc.


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