BM-111

BM-111 - Wired Boundary Microphone

The BM-111 is a capacitive interface microphone. It is designed for ceiling or desktop fixed installation. All microphones have good RF shielding effect, which can effectively isolate the RF interference of various wireless communication devices (such as mobile phones).

• Radio head: backplane polarized electrostatic capacitive type
• Pointing characteristics: hemispherical (unidirectional)
• Frequency Response: 80-18000Hz
• Turn-on sensitivity: 18 mV/Pa = -34.4 dBV
• Output impedance: <200Ω
• Maximum with sound pressure: 106dB (SPL@1%THD)
• Signal-to-noise ratio: 68dB, 1kHz at 1Pa
• Noise voltage: 6.0 μV [A]
• Phantom Power: DC 12-52V
• Current consumption: 4mA (typ)
• Output connector: built-in 3-pin XLR male
• Weight: about 95g (including nut and rubber ring)
• Length: 75mm, width: 20mm (copper tube), 39.5mm (microphone ring)