Shure MX391 Condenser Boundary Microphone (Supercardioid, Black)
Color
Polar Pattern
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|---|---|---|
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Description
Overview
The Shure MX391/S is a miniature supercardioid condenser boundary microphone with a 4 m (12 ft) attached cable and separate in-line preamplifier. It is designed for installed sound applications including boardrooms, houses of worship, and distance learning centers.
Key Features
- Interchangeable cartridges: Compatible with all Microflex R-series capsules
- CommShield RF filtering: Rejects interference from wireless devices
- Low-profile design: Discreet placement on tables, altars, and lecterns
Specifications
- Type: Condenser, supercardioid
- Frequency response: 50 Hz – 17,000 Hz
- Sensitivity: -33.5 dBV/Pa (21.1 mV)
- Max SPL: 123 dB
- Self-noise: 27 dB SPL-A
- Signal-to-noise ratio: 67 dB
- Output impedance: 150 ohms (EIA rated)
- Power: 11–52 VDC phantom
- Cable: 4 m (12 ft) attached, 4-pin mini connector
- Color: Black
In the Box
- MX391 boundary microphone
- In-line preamplifier with XLR connector
- Strain relief














