he Astatic 631L is a dynamic, noise-canceling handheld microphone engineered for professional voice communication in challenging noisy environments. Designed for close-talking applications, it provides highly intelligible sound while effectively minimizing background noise from all directions.
Its rugged tear-drop design, durable Cycolac housing, and polyester diaphragm ensure reliability in extreme conditions, including moisture, temperature changes, and chemical exposure. The microphone includes a soft lip guard for proper close-talking spacing and a heavy-duty four-conductor coil cord for flexible operation.
With a low-impedance (200 Ω) output, a DPDT press-to-talk switch, and trouble-free long-life construction, the Astatic 631L is ideal for factories, airports, restaurants, police, fire, taxis, buses, helicopters, and other professional two-way communication systems.
Astatic 631L Key Features:
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Dynamic, noise-canceling microphone optimized for voice clarity
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Low-impedance (200 Ω) output for professional audio systems
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Handheld design with soft lip guard for proper close-talk positioning
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Rugged Cycolac housing and polyester diaphragm resist moisture, chemicals, and temperature extremes
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Durable four-conductor, shielded coil cord (extends 1.8 m / 6 ft.)
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DPDT press-to-talk switch, spring return, long-life, trouble-free operation
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Perfect for factories, airports, public transport, emergency vehicles, and noisy work environments
Astatic 631L Specifications
Element: Dynamic noise cancelling Frequency Response: 100 to 5000 Hz Output Level: -58 dB (0 dB = 1mw / 10 microbars) -80 dB (0 dB = 1 volt / microbar) 1.0 mV/PA Impedance: 200 ohms, matches 50 to 1000 ohms Cable: Four conductor, two shielded, permanently attached, heavy duty, coil cord that extends to 1.8m (6 ft.) Switch: Operated by press-to-talk lever, DPDT long life, trouble free switch with spring return, has smooth feel. Wired normally open Housing: Durable molded black Cycolac Dimensions: 100mm (3-15/16") high x 75.4mm (2-3/32) wide x 66.7mm (2-5/8") deep Weight: 284 grams (10 oz
