microphone. The CM 30 has a smooth, wide range frequency response for natural reproduction of the singing voice, organ or other musical instruments. Extreme low frequencies are filtered out to reduce pickup of room rumble. The microphone output is balanced, low impedance. It is protected against static and radio frequency interference. A built in removable hanger allows easy position adjustment by bending the lower portion of the hanger. The CM 30 requires 12 48V phantom power. Specifications Type Unidirectional condenser. Transducer Electret condenser. Frequency Response typical 40 Hz to 20,000 Hz. Polar Pattern Supercardioid. Impedance 150 ohms, balanced. Recommended minimum load impedance 1000 ohms. Open Circuit Sensitivity 10 mVPa 40 dB re 1 voltPa. Power Sensitivity 37.5 dB re 1 mWPa. Equivalent Noise Level 28 dB SPL typical 0 dB 0.0002 dynecm2, A weighted. SN Rati 66 dB at 94 dB SPL. Maximum Sound Pressure Level 120 dB SPL produces 3 THD. Input Connectors Screw terminals. Output Connectors Screw terminals. Operating Voltage Phantom power, 12 to 48 volts DC, positive voltage on pins 2 and 3 with respect to pin 1 of output terminal. Current drain 4.5 milliamperes. Materials Brass housing, steel faceplate. Finish White CM 30W microphone, white faceplate. Weight microphone and cable 4 ounces 113 grams. Weight microphone, cable and circuit 7.5 ounces 212 grams. Cable White CM 30W, 30 ft 9.15 m 2 conductor shielded 0.1 in.
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