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DescriptionEquipped with features like programmable, silent membrane switches, logic inputs and outputs, and LED indicators, Microflex® Boundary Microphones are the high-quality solution for a range of applications such as altars, boardrooms and distance learning centers. Every Microflex Boundary microphone... Read More
Retail Price: $320.00 Our Price: $229.00
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Equipped with features like programmable, silent membrane switches, logic inputs and outputs, and LED indicators, Microflex® Boundary Microphones are the high-quality solution for a range of applications such as altars, boardrooms and distance learning centers. Every Microflex Boundary microphone features a choice of interchangeable condenser cartridges.
MX391: Includes attached 4 meter (12 ft) cable terminated with a 4-pin mini connector and separate preamplifier. A rubber strain relief is provided for applications that require removing the 4-pin mini connector and connecting the mic cable directly to screw terminals in the preamplifier.
|Polar Pattern||Supercardioid (MX391/S, MX391W/S)|
|Operating Temperature Range||-18 to 57 degrees C (0 to 135 degrees F)|
|Relative Humidity||0 to 95%|
|Frequency Response||50 to 17,000 Hz|
|Output Impedance (at 1000 Hz)||180 ohms actual (rated at 150 ohms)|
|Open Circuit Sensitivity 1 kHz ref. 1 V per Pascal *||Cardioid: –29.6 dB (33.5 mV)|
All settings -12 dB at 0 gain; *1 Pascal = 94 dB SPL
|Maximum Sound Pressure Level (1 kHz at 1% Total Harmonic Distortion, 1 k ohm load)||Cardioid: 118.8 dB|
All settings +6 dB at 0 gain
|Signal to Noise Ratio (referenced at 94 dB SPL)||Cardioid: 71.4 dB|
|Equivalent Output Noise (A-weighted)||Cardioid: 22.6 dB SPL|
|Dynamic Range at 1 k ohm Load||96.2 dB|
100 dB at 0 gain
|Common Mode Rejection||45 dB minimum, 10 Hz to 100 kHz|
|Preamplifier Output Clipping Level||-6 dBV (0.5 V)|
12 dB at 0 gain
|Polarity||Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of the preamplifier XLR output connector.|
|Power Requirements||11 to 52 Vdc phantom|
2.0 mA current consumption
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