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Crown CM31S60 Hanging Choir Mic, 60' Cable, Black The Crown CM-31 is a professional-quality,supercardioid condenser microphone designed for inconspicuous miking of a choir, orchestra or stage. It also can hang over conference tables or discussion groups for inconspicuous isolated miking. The CM-31 consists of two parts: the micro-phone with a permanently attached 60' cable and the cylindrical electronics power module. The mic cable connects to the power module which adapts the microphone for phantom powering and includes a low-cut switch. Cable connection is via miniature 3-pin connectors. The power module output is balanced, low imped-ance. It is protected against static and radio-frequency interference. The CM-31 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 has a built-in removable hanger which allows easy position adjustment. Specifications: Type: Unidirectional condenser Transducer: Electret condenser Frequency Response (typical): 40 Hz to 20,000 Polar Pattern: Supercardioid Impedance: 150 ohms, balanced. Recommended minimum load impedance 1000 ohms. Open Circuit Sensitivity: 10 mV/Pa (-40 dB re 1 volt/Pa) Power Sensitivity: -37.5 dB re 1 mW/Pa Equivalent Noise Level: 28 dB SPL typical (0 dB = 0.0002 dyne/cm2), A-weighted S/N Ratio: 66 dB at 94 dB SPL Maximum Sound Pressure Level: 120 dB SPL produces 3% THD Mic-Cable Connector: TA3F (mini XLR-type) Power Module Connector (input): TB3M (mini XLR-type) Power Module Connector (output): 3-pin male XLR-type Operating Voltage: Phantom power, 12 to 48 volts DC, positive voltage on pins 2 and 3 with respect to pin 1 of output terminal Materials: Brass housing, steel power module faceplate Finish: Black Cable: Black, 60-ft 2-conductor shielded 0.1-in. (0.254-cm) diameter cable from microphone to electronics; none supplied for electronics output. Use 2-conductor shielded microphone cable. Dimensions (microphone only): .530" (1.3 cm) diameter, 1.446" (3.7 cm) length Included Accessories: WS-5 windscreen (black)
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