conference microphone units d44 series chairman and delegate unit

AVCiT Conference Microphone units-D44 series chairman and delegate unit

AVCIT D4402 and D4403 is speech unit with LED display, D4402 is speech unit for chairman, while D4403 is speech unit for delegate, simply push and talk. Speaker and headphone jack built-in, with volum...

AVCIT D4402 and D4403 is speech unit with LED display, D4402 is speech unit for chairman, while D4403 is speech unit for delegate, simply push and talk. Speaker and headphone jack built-in, with volume control knob, DSP processing ensure high-fidelity voice, compact and stylish.

Specification of D44 series chairman and delegate unit

Power                   DC24V

Unit interface      DIN8P interface

Power                   3W

Headset output  9dBu,8-32Ω,3.5mm mini jack

Speaker power   2W

Microphone type          Capacitive diaphragm Point  heart-shaped

S/N                                  >80dB

Crosstalk attenuation  >80dB

Distortion                       <0.10%

Frequency response     60-8kHz

Equivalent noise            ≈20dBSPL

Maximum SPL               105dB(3% threshold)

Sensitivity                       -22dBv/Pa

Dimensions                    213*145*70mm

Color                                Silver Black


Features of Microphone unit D44 series

Features of Microphone unit D44 series

Exquisite and elegant desktop style, with LED displaying the name of speaker;

Built-in speaker and headphone jack, with volume control knob;


Features of Microphone unit D44 series

Removable microphone with circular LED indicator on while speech,

Push and talk, with feature of howling suppression, Built-in speakers automatically shut down while pushing and talking;


Features of Microphone unit D44 series

Chairman unit has priority to talk and shut down all delegate units .

Powered by conference console, input voltage 24V.


Features of Microphone unit D44 series

With AVCIT’s 8-PIN DCN cable, greatly reduces the interference of electromagnetic;

Chairman unit can be anyplace;

Connected in series, easy to install and maintain;


Schematic of Conference system

Schematic of Conference system zoom in
Schematic of Conference system
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