Microflex Series Compact Boundary Microphone with On/Off Switch (Omnidirectional)

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The MX393 Microflex�Wired Boundary Microphone from Shure is equipped with a programmable, silent membrane switch and green LED indicator. It is a high-quality solution for a rang e of applications such as altars, boardrooms and distance learning centers. Includes miniature three pin connector and 12' XLR cable.All measurements taken with microphone mounted on a wooden surface 76.2 cm x 76.2 cm (30 in. x 30 in.).Frequency Response50 to 17,000 HzPolar PatternOmnidirectionalOutput ImpedanceEIA Rated at 150 ohms (180 ohms actual)Sensitivity (at 1 kHz, open circuit voltage)Omnidirectional: -22.0 dBV/Pa (79.4 mV)1 Pascal=94 dB SPLMaximum Sound Pressure Level (1 kHz at 1% Total Harmonic Distortion, 1 k ohm load)Omnidirectional: 111.5 dBSignal to Noise Ratio (referenced at 94 dB SPL)Omnidirectional: 76.5 dBEquivalent Output Noise (A-weighted)Omnidirectional: 17.5 dB SPLDynamic Range94.0 dBCommon Mode Rejection45 dB minimum, 10 Hz to 100 kHzSwitch Attenuation50 dB minimumPreamplifier Output Clipping Level-6 dBV (0.5 V)PolarityPositive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output connector.Power Requirements11 to 52 Vdc phantom2.0 mA current consumptionEnvironmental RequirementsOperating Temperature Range: -18 to 57 degrees C (0 to 135 degrees F)Relative Humidity: 0 to 95% Flat frequency response across the vocal range for uncolored sound Sleek, low-profile design for unobtrusive appearance Interchangeable cardioid, supercardioid, and omnidirectional cartridges that provide optimal choice for each application Balanced, transformerless output for increased immunity to noise over long cable runs Programmable membrane on/off switch plus LED on/off indicator Show more