BM Series Boundary Microphones



 

BM series Boundary Microphones

BM series condenser boundary microphone is designed for flush mounting into desktops or ceilings. Apply to televideo conferencing, recording or amplification of round table discussions and the microphones needs to be unobtrusive as possible. The microphones have excellent RF shielding effect, which makes the microphones absolutely insensitive to interference from wireless communication devices such as mobile phones. BM-110 provides a half-spherical polar pattern, making it ideal for large rooms. Due to its high sensitivity, even pick up the sound in far distance, output level won't appear large influence. The elastic bearing rings isolate the mechanical of the surface, thus the microphone can effectively isolate the mechanical noise. BM-111 half-cardioid polar pattern, which increases the gain-before-feedback and decreases the amount of diffuse ambience.

Key Features:

BM-110/BM-111 Wired Boundary Microphone

Anti-Interference

·Excellent RF shielding effect, effectively avoiding RF interference.

·High gain-before-feedback

Hidden Installation

·Apply to fix or suspended ceiling installation

·Specially design for flush mounting into desktops or ceilings

Clear Sound Quality

·Cardioid polar pattern, high-quality speech reproduction.

·Low-impedance balance audio output, the sound is smooth and clear.

·Equipped with auto-gain audio processing circuit, effectively avoiding the feedback.

Super Strong Directivity

·Cardioid polar pattern, increase gainbefore-feedback.

·Decrease the environment noise and feedback, guarantee the vocal clarity.

Delicate Workmanship

·Heavy die-case, stable and durable alloy shell and microphone.

·The button is equipped with elastic bearing rings, minimize the coupling of surface vibration to the surface.

Convenient Installation

Accessories: elastic bearing rings

Installation:

The installation hole(with elastic bearing ring)Ø24mm(15/16")

The installation hole(without elastic bearing ring)Ø20mm(13/16")

The maximum thickness of the desktop/ceiling 57mm(2.25)

Product Specification

BM-110 Boundary Microphone

         BM-110 Polar Pattern                                              BM-110 Frequency Response

Model: BM-110

Capsule:Back of polarization electrostatic condenser type

Polar Pattern:Omni-directional polar pattern

Frequency Response:80-18,000 Hz80-18,000 Hz

Sensitivity:18 mV/Pa = -34.4 dBV18 mV/Pa = -34.4 dBV

Output Impedance: < 200 Ω< 200 Ω

Max. Input Sound Level: 106 dB [SPL @ 1% THD].106 dB[SPL @ 1% THD]

S/N:68dB, 1 kHz @ 1Pa68dB, 1 kHz @ 1Pa

Noise Voltage: 6.0 μV [A]6.0 μV [A]

Phantom Supply: DC12-52V

Current Consumption:4mA (Typical)

Output Connector: Built-in 3-pin XLRM

Weight: 95g (include nut and elastic bearing ring)

Dimension: Length:74mm Width:20mm (steel pipe)39.5 mm(capsule ring)

BM-111 Boundary Microphone

                    BM-111 Polar Pattern                                                    BM-111 Frequency Response

Model: BM-111

Capsule:Back of polarization electrostatic condenser type

Polar Pattern: Cardioid polar pattern

Frequency Response:80-18,000 Hz80-18,000 Hz

Sensitivity:18 mV/Pa = -34.4 dBV18 mV/Pa = -34.4 dBV

Output Impedance: < 200 Ω< 200 Ω

Max. Input Sound Level:106 dB [SPL @ 1% THD].106 dB[SPL @ 1% THD]

S/N:68dB, 1 kHz @ 1Pa68dB, 1 kHz @ 1Pa

Noise Voltage: 6.0 μV [A]6.0 μV [A]

Phantom Supply: DC12-52V

Current Consumption:4mA (Typical)

Output Connector: Built-in 3-pin XLRM

Weight:95g (include nut and elastic bearing ring)

Dimension: Length:74mm Width:20mm(steel pipe)39.5 mm(capsule ring)

 

BM Series Overhead Microphones

BM-112 and BM-113 is designed for ceilings mounting. It is available in two versions. BM-113 has a short flexible gooseneck and is ideal for installations with a low ceiling. Both microphones terminate in a single gang plate for easy installation into a standard electrical box. The BM-112 and BM-113 are suited for applications such as tele/video conferencing, choir miking, distance learning and wherever high quality speech or music reproduction/recording is required. Both microphones have excellent RF shielding effect, which makes the microphones absolutely insensitive to interference from wireless communication devices such as mobile phones. BM-112 accessories: gooseneck microphone, white, for mounting into the ceiling. (embedded installation/ Depressed socket)Size: 90mm*86mm.BM-113 accessories: hanging type gooseneck microphone, white, for mounting into the ceiling. (embedded installation/ Depressed socket)

Size: 90mm*86mm.

Key Features

BM-112 Overhead Microphones

Anti-Interference

·High-quality speech reproduction.

·High gain-before-feedback.

·Flat and wide frequency response.

Clear Sound Quality

·High-quality speech reproduction.

·High gain-before-feedback.

·Flat and wide frequency response.

Convenient Installation

·Apply to fixing or suspended hanging installation.

·Standard installation or embedded installation.

·Hidden installation design.

BM-113 Overhead Microphones

Anti-Interference

·Excellent RF shielding effect, effectively avoiding RF interference.

·BM-113 Cardioid polar pattern.

Clear Sound Quality

·High-quality speech reproduction.

·High gain-before-feedback.

·Flat and wide frequency response.

Convenient Installation

·Apply to fixing or suspend hanging installation.

·Standard installation or embedded installation.

·Hidden design.

·BM-113 flexible gooseneck for optimal positioning.

BM-112 Overhead Microphones

This frequency response curve and polar pattern correspond to a typical production sample for this microphone.(frequency response measurement error: ±2.5dB)

BM-112 Frequency Response 0dB=18 mV/Pa

BM-112 Polar Pattern

Capsule Type: Omni-directional polar pattern

High Pass Filter:100Hz,18dB/octave

Frequency Response:35Hz-18KHz

Sensitivity:-32dB,1V@1Pa

Output Impedance: 200Ω

Max. Input Sound Level:130dB,1KHz@1%T.H.D.

Dynamic Range (typical): 110dB, 1KHz at highest sound level

S/N:>68dB,1KHz@1Pa

Phantom Supply DC12-52V

Current Consumption 8mA (BM-112Typical)

Output Connector: 3P fast connector

Dimension(mm):90(L)×86(W)

Weight: 95g

Colour: White

BM-113 Overhead Microphones

This frequency response curve and polar pattern correspond to a typical production sample for this microphone.(frequency response measurement error: ±2.5dB)

BM-113 Frequency Response 0dB=18 mV/Pa

BM-113 Polar Pattern

Capsule Type: Condenser cardioid polar pattern

High Pass filter:100Hz,18dB/octave

Frequency Response:35Hz-18KHz

Sensitivity:-32dB,1V@1Pa

Output Impedance: 200Ω

Max. Input Sound Level:130dB,1KHz@1%T.H.D.

Dynamic Range (typical): 110dB, 1KHz at highest sound level

S/N:>68dB,1KHz@1Pa

Phantom Supply: DC12-52V

Current Consumption: 8mA (BM-112Typical)

Output Connector: 3P fast connector

Dimension(mm):90(L)×86(W)×153(H)

Weight: 95g

Colour: White

 

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