The Shure MX392/O Microflex® Omnidirectional Boundary Microphone is a professional low-profile condenser microphone designed for conference rooms, boardrooms, lecture halls, distance learning facilities, and houses of worship. Featuring a programmable membrane switch, LED status indicator, and logic input/output connections, the MX392/O delivers clear speech reproduction with flexible control options for installed AV systems.
Equipped with an omnidirectional condenser cartridge, the MX392/O captures voices from multiple directions around a conference table or other flat mounting surface. Its compact design provides an unobtrusive appearance, while the 50 Hz–17 kHz frequency response and balanced, transformerless output support natural, intelligible speech reproduction.
The microphone includes a built-in preamplifier and an attached 12-foot unterminated cable for professional installation. It requires 11–52V DC phantom power and supports integration with compatible automatic mixers, conferencing processors, and AV control systems.
Shure MX392/O Key Features
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Omnidirectional Pickup Pattern: Captures speech from multiple directions, ideal for conference tables and collaborative meeting spaces.
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Microflex Condenser Technology: Provides detailed speech reproduction with a 50 Hz–17 kHz frequency response.
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Programmable Membrane Switch: Configurable for Push-to-Talk, Push-to-Mute, or Push-On/Push-Off operation.
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LED Status Indicator: Provides visual microphone status with external logic control capability.
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Logic Input/Output: Supports integration with compatible automatic mixers and AV control systems.
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Built-In Preamplifier: Delivers balanced, transformerless audio output.
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12-Foot Unterminated Cable: Allows professional installers to terminate audio and logic connections as required.
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Interchangeable Internal Cartridge: Supports compatible Shure Microflex cartridges for alternative pickup patterns.
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Low-Profile Design: Suitable for tabletop and flat-surface installations without obstructing sightlines.
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Paint Mask Included: Accommodates custom-color installation requirements.
Shure MX392/O Technical Specifications
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Specification
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Details
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Manufacturer
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Shure
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Model
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MX392/O
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Product Series
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Microflex
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Microphone Type
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Boundary Condenser Microphone
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Polar Pattern
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Omnidirectional
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Frequency Response
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50 Hz–17 kHz
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Sensitivity at 1 kHz
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–22 dBV/Pa
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Maximum SPL
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111 dB SPL
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Signal-to-Noise Ratio
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80 dB
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Dynamic Range
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96 dB
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Output Impedance
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180 Ohms
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Audio Output
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Balanced, Transformerless
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Phantom Power
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11–52V DC
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Current Consumption
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2.0 mA
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Switch Type
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Programmable Membrane
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Switch Functions
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Push-to-Talk, Push-to-Mute, Push-On/Push-Off
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Logic Connections
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TTL-Compatible Input/Output
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Status Indicator
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LED
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Cable Length
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12 ft (Approximately 3.7 m)
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Cable Termination
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Unterminated
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Mounting
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Tabletop / Flat Surface
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Compatible Cartridges
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Shure R183, R184, R185
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Interchangeable Shure Microflex Cartridges
The Shure MX392/O comes equipped with an omnidirectional cartridge. For installations requiring a different pickup pattern, the internal cartridge can be replaced by removing the microphone grille and retaining bracket according to Shure's instructions.
Compatible cartridge options include:
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Shure R183 Omnidirectional Cartridge: Maintains the original broad pickup pattern.
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Shure R184 Supercardioid Cartridge: Provides more focused directional coverage.
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Shure R185 Cardioid Cartridge: Emphasizes sound arriving from a particular direction.
Replacement cartridges are sold separately and should be installed according to Shure's instructions.
Ideal Applications
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Conference Rooms and Boardrooms: Captures speech from participants seated around meeting tables.
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Lecture Halls and Classrooms: Supports clear spoken-word audio for presentations and instruction.
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Distance Learning: Integrates with compatible conferencing and audio processing equipment.
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Houses of Worship: Provides discreet microphone placement on altars and other suitable surfaces.
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Corporate AV Systems: Supports programmable microphone control and external logic integration.
Why Buy the Shure MX392/O from Audio Supply?
Audio Supply offers Shure Microflex microphones and professional conferencing equipment for commercial AV installations, educational facilities, and houses of worship.
Whether you're installing a new conference room system or replacing an existing boundary microphone, Audio Supply can help you select compatible Shure microphones, cartridges, and installation accessories.
