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Shure MX391W-A/O Microflex Condenser Boundary Microphone (White, Omnidirectional)

 
  • Dale #:

    SHUR-MX391WAO
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  • This item usually ships within 10-20 days after your order is placed. Your payment will be charged after completing checkout.

Description

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... Read More

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Description

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.

Features

  • Flat frequency response across the vocal range for uncolored sound
  • Interchangeable cardioid, supercardioid, and omnidirectional cartridges that provide optimal choice for each application
  • Sleek, low-profile design for unobtrusive appearance
  • Balanced, transformerless output for increased immunity to noise over long cable runs
  • Programmable on/off switch and LED on/off indicator (MX392/MX393 models only)
  • LED logic input and switch logic output terminals for remote control or use with automatic mixers (MX392 models only)

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Product Specs

Polar PatternSupercardioid (MX391/S, MX391W/S)
Environmental Requirements
Operating Temperature Range-18 to 57 degrees C (0 to 135 degrees F)
Relative Humidity0 to 95%
Frequency Response50 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 * Omnidirectional: –21.5 dB (81.4 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)Omnidirectional: 110.7 dB
All settings +6 dB at 0 gain
Signal to Noise Ratio (referenced at 94 dB SPL)Omnidirectional: 79.5 dB
Equivalent Output Noise (A-weighted)Omnidirectional: 14.5 dB SPL
Dynamic Range at 1 k ohm Load96.2 dB
100 dB at 0 gain
Common Mode Rejection45 dB minimum, 10 Hz to 100 kHz
Preamplifier Output Clipping Level-6 dBV (0.5 V)
12 dB at 0 gain
PolarityPositive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of the preamplifier XLR output connector.
Power Requirements11 to 52 Vdc phantom
2.0 mA current consumption

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