Shure MX391 Microflex Cardioid Boundary Microphone (White)

BH #SHMX391WAC • MFR #MX391W-A/C
Shure MX391 Microflex Cardioid Boundary Microphone (White)
Key Features
  • Cardioid Pickup Pattern
  • No Mute Switch
  • Interchangeable Mic Capsule
  • Preamp with XLR Output
Styled in white, this Shure MX391 is a Microflex cardioid boundary microphone. It's easy to use, features an inline preamp, and offers interchangeable mic capsules. It's designed to pick up speech in a manner preserving its intelligibility. The mic is well suited for sound reinforcement and recording applications in boardrooms, conference centers, educational settings, houses of worship, and more.
Special Order
Expected availability: 7-14 business days
$192.00
$32/mo. suggested payments
with 6 Mos. Promo Financing* 

Important Notice

  • This item is noncancelable and nonreturnable.
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Shure MX391 Overview

  • 1Description
  • 2A Streamlined, Low-Profile Solution
  • 3Interchangeable Mic Capsule Tailored for Speech and Vocals
  • 4Inline Preamp with XLR Output

Styled in white, this Shure MX391 is a Microflex cardioid boundary microphone. It's easy to use, features an inline preamp, and offers interchangeable mic capsules. It's designed to pick up speech in a manner preserving its intelligibility. The mic is well suited for sound reinforcement and recording applications in boardrooms, conference centers, educational settings, houses of worship, and more.

A Streamlined, Low-Profile Solution

  • The compact, low-profile microphone is designed to be surface-mounted on conference tables, stage floors, and lecterns.
  • The sleek, unobtrusive form factor stays out of the way of panelists and presenters, making it a smart solution for video conferencing.
  • The MX391 doesn't offer mute switches, so speakers can't mute themselves—the mic is always ready to capture every moment in a panel discussion or presentation.

Interchangeable Mic Capsule Tailored for Speech and Vocals

  • The condenser microphone is optimized for crisp, clear speech.
  • The mic's cardioid pickup pattern focuses audio capture on the person speaking, for less unwanted background sound.
  • An interchangeable mic capsule design allows you to swap out the cardioid capsule for a supercardioid capsule (if you need a narrower pickup pattern) or an omnidirectional capsule (for a wider, more forgiving pickup pattern).

Inline Preamp with XLR Output

  • Included is an inline preamp with a standard 3-pin XLR output ready to plug into a PA system, mixer, or recorder capable of supplying 12 to 48V phantom power needed to power the mic.
  • The preamp offers a high level of RF filtering, making the mic substantially less susceptible to unwanted radio interference.
UPC: 042406576864

Shure MX391 Specs

Microphone
Form FactorBoundary/Surface Mount
Sound FieldMono
CapsuleElectret Condenser
Polar PatternCardioid
CircuitrySolid-State
High-Pass FilterNone
Tone AdjustmentNone
On-Board ControlsNone
WindscreenNone
Performance
Frequency Range50 Hz to 17 kHz
Maximum SPL119 dB SPL
Impedance180 Ohms
Sensitivity-30 dBV/Pa
Output Level-6 dBV (Max)
Dynamic Range96.2 dB
Signal-to-Noise Ratio71 dB
Equivalent Noise Level23 dB A-Weighted
THD1%
CMRR45 dB
Connectivity
Output Connectors (Analog)1 x XLR 3-Pin Male (on Preamp)
Cable Length12.14' / 3.7 m
Power
Operating Voltage11 to 52 V (Phantom Power)
Operating Current Consumption2 mA
Physical
ColorWhite
MountingSurface-Mount
Operating Temperature0 to 135°F / -17.8 to 57.2°C
Operating Humidity0 to 95%
Storage Temperature-20 to 165°F / -28 to 73°C
CertificationsCE, as per Manufacturer
DimensionsH: 0.75 x W: 2.09 x L: 3.13" / H: 19.05 x W: 53.04 x L: 79.4 mm
Weight4.44 oz / 126 g
Packaging Info
Package Weight1.07 lb
Box Dimensions (LxWxH)10 x 4.8 x 3.2"
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YOUR RECENTLY VIEWED ITEMS

question

does this have a mute switch?
Asked by: Moses
It does not. It is intended to be controlled externally.
Answered by: Product Rep Shure Expert
Date published: 2018-08-27

question

Any suggestions on the ideal phantom power source to use this mic with my Panasonic AG-HMC40P camera? Thank you.
Asked by: Sarah W.
I use mine with a Yamaha mixer for depositions and it works great. I too have used it with a Tascam digital recorder with the supplied phantom power enabled and it works fine. Your camera should be able to supply the power needed.
Answered by: David W.
Date published: 2018-08-27

question

does the mic hear vibrations on a floor such as dancers or people walking on a stage ?
Asked by: Charles
The Shure MX391 will pick up vibration from the surface it is placed on.
Answered by: Jeff P.
Date published: 2018-08-27

question

I'm trying to understand what it means to provide phantom power is for the shure 391o microphone?
Asked by: Anonymous
normally 48 v
Answered by: DIAMARELIS R.
Date published: 2018-08-27

question

Does it come supplied with the cardioid cartridge?
Asked by: Kevin P.
Yes - this microphone does include the Cardioid transducer.
Answered by: Mark S.
Date published: 2018-08-27
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