• Shure MX391/O Microflex Boundary Microphone
  • Shure MX391/O Microflex Boundary Microphone Alternate
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Shure MX391/O Microflex Boundary Microphone

Shure MX391/O Microflex Boundary Microphone

SoundPro Item: 23508 | Part Number: MX391/O

$265.00
$375.00 $265.00
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MSRP: $375.00 | MAP: $265.00

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  • 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
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Shure MX391/O Microflex boundary microphone features programmable, silent membrane switches, logic inputs and outputs, LED indicators, and more. 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.

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Specifications

Electrical
Max. SPL (1 Khz at 1% THD, 1 Kω Load; All Settings +6 Db at 0 Gain (internal modification))
117.5 dB
Preamp Output Clipping Level (1% THD)
-6dBV (0.5V)
Power Requirements
11-52 VDC phantom, 2.0mA
Audio
Polar Pattern
Omnidirectional
Frequency Response
50 Hz - 17 kHz
Sensitivity
-21.8 dB (81.4 mV)
Signal-to-Noise Ratio (referenced at 94 Db SPL at 1kHz)
72.7 dB SPL
Dynamic Range (1kohms Load at 1kHz)
96.2 dB
Connectivity
Equivalent Output Noise (A-weighted)
14.5 dB SPL
Included Items
MX391/O Microflex Boundary Microphone
1x
12 Ft Cable with 4-pin Mini Connector and In-line Preamp
1x
Rubber Strain Relief
1x
General
Transducer Type
Condenser
Rated Output Impedance
150 ohms (180 ohms actual)

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