Shure MX418S/C 18" Gooseneck Cardiod Condenser Microphone with Preamp

Microflex® Standard Gooseneck microphones bring a whole new meaning to the word flexible with their fully adjustable gooseneck. Designed for easy replacement and available in cardioid, supercardioid and omnidirectional polar patterns, the interchangeable cartridges offer wide frequency response and accurate sound reproduction for a wide variety of applications, such as houses of worship, courtrooms and conference centers. Plus, the condenser cartridges fit every model in the Microflex product line for enhanced convenience and consistent sound. 

 

Frequency Response

50 to 17,000 Hz

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Output Impedance

180 ohms actual (EIA rated at 150 ohms)

Sensitivity (At 1,000 Hz, open circuit voltage*)

Cardioid: -35.0 dBV/Pa (17.8 mV)

Supercardioid: -33.5 dBV/Pa (21.1 mV)

Omnidirectional: -27.5 dBV/Pa (42.2 mV)

All values -12 dB at 0 gain

*1 Pascal = 94 dB SPL

Maximum SPL (1 kHz at 1% THD, 1 kilohm load)

Cardioid: 124.2 dB

Supercardioid: 122.7 dB

Omnidirectional: 116.7 dB

All values +6 dB at 0 gain

 

Equivalent Output Noise (A-weighted)

Cardioid: 28.0 dB SPL

Supercardioid: 26.5 dB SPL

Omnidirectional: 20.5 dB SPL

Signal to Noise Ratio (referenced at 94 dB SPL)

Cardioid: 66.0 dB

Supercardioid: 67.5 dB

Omnidirectional: 73.5 dB

Dynamic Range at 1 kilohm load

96.2 dB

100 dB at 0 gain

Common Mode Rejection

45.0 dB minimum

Preamplifier Output Clipping Level (1% THD)

-6.0 dBV (0.5 V)

-12 dBV at 0 gain

Polarity

Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output connector

Power Requirements

11 to 52 Vdc phantom, 2.0 mA

Environmental Requirements

Operating Temperature Range: -18 to 57 degrees C (0 to 135 degrees F)

Relative Humidity: 0 to 95%