Astatic 901R دليل المستخدم

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901R
ELECTRET CONDENSER BOUNDARY
MICROPHONE
Description
The ASTATIC 901R is a superior low noise, electret condenser
cardioid surface mounted boundary microphone. It has been
redesigned with improved RF immunity to greatly reduce
susceptibility to radio interference from GSM based cell
phones, PDA/cell phones with walkie-talkie capability and
other similar devices. It is ideal for use on altars, conference
tables, stage floors, or television productions.
The 901R's electronics features an advan

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Specifications* SPECIFICATIONS FOR 901R Generating Element: Electret Condenser Polar Pattern: Cardioid Frequency Response: 100 Hz - 20 kHz Sensitivity Level: -33 dBV (22mV) @ 1Pa Impedance: 150 ohms Self Noise: 25dBA Maximum SPL: 127 dB, 1% THD, 1kHz +10 Powering: 0 P12, P24 and P48, 2.4mA -10 Phasing -20 Positive pressure on diaphragm generates a positive voltage on pin -30 2 relative to pin 3 Finish: 20K 100 500 1K 5K 10K 10 50 901R - Durable black urethane FREQUENCY IN HERTZ Dimensions: (See