Astatic 631L دليل المستخدم

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631L
DYNAMIC NOISE CANCELING
MICROPHONE
Commercial Audio Products
Description
The Astatic Model 631L is a noise cancelling dynamic microphone designed
for close talking, hand held 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 sp

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SPECIFICATIONS FOR 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