Harmonai GS-880C/GS-880D Voting Wired Cascading Chair/Delegate Microphone product image

Product Overview

Harmonai GS-880C/GS-880D is a voting-enabled wired cascading chair/delegate unit designed for modern conference systems. It features a cardioid electret condenser microphone for precise sound pickup and strong interference rejection. Powered centrally by the main unit (DC24V), it enables clean cabling and efficient installation. Supports formal voting functions for government meetings, corporate boardrooms, academic auditoriums, and more. The daisy-chain cascading architecture allows flexible system expansion and ensures stable, reliable operation.

Operating Voltage

DC24V (supplied by main unit)

Input/Output Interfaces

8P-DIN cable, Category 6A (Cat6A) Ethernet cable

Microphone Type

Cardioid electret condenser

Sensitivity

-46dBV/Pa

Frequency Response

20Hz–20kHz

Input Impedance

2kΩ

Directivity (0°/180°)

>20dB (at 1kHz)

Equivalent Noise Level

20dBA (SPL)

Maximum Sound Pressure Level

125dB (THD<3%)

Signal-to-Noise Ratio

>80dB

Channel Crosstalk

>80dB

Total Harmonic Distortion

<0.05%

Typical Applications

Widely deployed in government agency meetings, corporate boardrooms, academic lecture halls, and international convention centers—where formal voting and high-fidelity voice capture are essential. The daisy-chain cascading connection enables rapid deployment; the chair unit provides priority control to ensure orderly meeting flow.

For more information about Harmonai conference system solutions—or to request a customized configuration—please contact our professional team anytime.