BM-111 Flush-mount boundary microphone
Model BM-111
Overview
The BM-111 is a boundary condenser microphone designed for flush mounting in surfaces, offering discreet and natural voice pickup.
Its semi-cardioid pattern provides high gain before feedback and improves intelligibility in conference environments.
The advanced RF shielding and decoupled mounting make it ideal for rooms with a high density of electronic devices.
Technical specifications
Type
Flush-mount boundary condenser microphone (surface)
Series
BM interface microphone series
Applications
Video conferencing, recording, and sound reinforcement on tables and ceilings with aesthetic requirements
Capsule Type
Back-electret condenser
Polar Pattern
Semi-cardioid
Frequency Response
80 Hz – 18 kHz
Sensitivity
18 mV/Pa (−34.4 dBV @ 1 kHz)
Output Impedance
< 200 Ω (balanced)
Maximum SPL
106 dB SPL @ 1% THD
Signal-to-Noise Ratio
≈ 68 dB (A-weighted)
Phantom Power
12–52 V DC
Current Consumption
≈ 4 mA
Audio Output
Integrated 3-pin male XLR
RF Shielding
High immunity to RF interference and mobile devices
Mounting
Flush-mount in table or ceiling with decoupling elastic rings
Maximum Surface Thickness
Up to 57 mm
Color
Black
Included Accessories
Mounting nut and elastic rings
Typical Applications
Conference tables, suspended ceilings, boardrooms, and council chambers
Key features
- Low-profile flush-mount boundary microphone for tables and ceilings.
- Semi-cardioid pattern with excellent gain before feedback.
- Advanced RF shielding against mobile phone interference.
- Elastic-ring mounting to reduce mechanical vibrations.
- Balanced XLR output and wide phantom power range for maximum compatibility.
Want to see this equipment working in your room?
We advise you at no cost on compatibility, installation and alternatives for your space.
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