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Wired Discussion-type Daisy-chain Conference Host

Model:AS-8820   Guangzhou Jodie Audio Equipment Co., Ltd.

Core digital technology with a built-in high-performance CPU, supporting discussion functions and HDMI video output. Audio signals processed by a 32-bit high-speed floating-point DSP, delivering perfect and clear sound quality with a frequency bandwidth of 20Hz ~ 20KHz. Powered by a high-performance switching power supply, ensuring no impact on sound quality during long-distance transmission. Anti-interference circuit design to completely eliminate interference from all mobile phone signals. Equipped with a 2.8-inch LCD screen and independent key operation. Two microphone connections, each supporting 50 units (up to 100 units total), compatible with 10 chairman units. The system can be expanded to 512 conference units with an expander. The host features both traditional 8-pin daisy-chain interfaces and 4 RJ45 network cable interfaces for output. RS-232 interface with central control codes, enabling connection to central control systems. Multiple audio input and output interfaces for connecting sound reinforcement or recording equipment. The host can communicate with a computer via local USB connection, allowing system configuration through PC software. System settings can also be made directly on the host without a computer, supporting online firmware updates. Multiple conference modes available: FIFO (First-In-First-Out Mode), FREE (Full Open Mode), and C-ONLY (Chairman-Only Mode). Supports functions such as setting the number of simultaneous speakers and voice-activated speaking. Rack-mountable in 19-inch standard cabinets for easy storage and management.

Specification Parameters

  • Power Supply (Host): AC 110V-220V / 50Hz
  • Frequency Response: 20Hz - 20kHz
  • Signal-to-Noise Ratio (S/N): >96 dBA
  • Total Harmonic Distortion (THD): <0.05%
  • Microphone Unit Interfaces: 2 × Round DIN-8 Socket Interfaces, 4 × RJ45 Network Cable Interfaces
  • Central Control Interface: 1 × RS-232 Serial Port
  • Audio Input: 1 × RCA (Phono Jack)
  • Audio Output: 1 × RCA (Phono Jack), 1 × XLR Connector
  • External Dimensions (L×W×H): 483×323×90mm
  • Color: Grayish Black
  • Installation Method: 19-inch Standard Rack Mountable
* Page content update time:2025-11-03 17:24:46,The relevant information on the website is for reference only. All products are subject to physical inspection and are subject to change without prior notice.
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Guangzhou Jodie Audio Equipment Co., Ltd.

Hotline:4006-020-189
Mobile:189-0307-1996  Manager Yang
Address:Room 601, No. 46 Shanghua 1st Street, Jianggao Town, Baiyun District, Guangzhou City
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