Shure MX391/O Omnidirectional Miniature Microflex Condenser Boundary Microphone - The Ultimate Sound Solution
Get crystal-clear sound for all your applications with this amazing boundary microphone! Its interchangeable condenser cartridge and low-profile design make it a top choice.
Equipped with programmable, silent membrane switches, logic inputs and outputs, it's perfect for altars, boardrooms, and distance learning centers. Each microphone offers a variety of interchangeable condenser cartridges.
Features:
- • Flat frequency response for natural-sounding vocals
- • Interchangeable cartridges for optimal application choice
- • Sleek design for a discreet look
Specifications:
- Microphone:
- Primary Applications: Conferencing
- Microphone Type: Boundary/Surface Mount
- Intended Sound Sources: Vocals, Speech
- Sound Field: Mono
- Element Type: Electret Condenser
- Polar Pattern: Omnidirectional
- Circuitry: Solid-State
- High-Pass Filter: No
- Gain Adjustment: No
- Performance:
- Frequency Range: 50 Hz to 17 kHz
- Maximum SPL: 111 dB SPL
- Sensitivity: -22 dBV/Pa
- Dynamic Range: 96.2 dB
- Equivalent Noise Level: 15 dB A-Weighted
- Connectivity:
- Analog Output: 1x XLR 3-Pin Male (on Preamp)
- Cable Length: 12.14' / 3.7 m
- Power:
- Power Sources: Phantom Power
- Operating Voltage: 11 to 52 V (Phantom Power)
- Physical:
- Color: Black
- Mounting Thread Size: No Mount Included
- Dimensions: H: 0.75 x W: 2.09 x L: 3.13' / H: 19.05 x W: 53.04 x L: 79.4 mm
- Weight: 4.44 oz / 126 g


This Shure MX391/O omnidirectional microphone is perfect for various settings like altars, boardrooms, and distance learning centers. It's great for those who need high-quality sound for vocals and speech in conferencing. With a black color, it has dimensions of H: 0.75 x W: 2.09 x L: 3.13' (H: 19.05 x W: 53.04 x L: 79.4 mm) and weighs 4.44 oz / 126 g. It features a flat frequency response, interchangeable cartridges, and a sleek, low-profile design for a discreet look.