The CX-C6643HD is a professional conference system digital audio processor designed for advanced audio management in conference rooms, meeting spaces, multimedia classrooms, concert halls, command centers, and other professional AV environments. It provides 12 analog audio input and 12 analog audio output channels, allowing multiple microphones, audio sources, amplifiers, and speaker systems to be connected and managed within a single processor.

The processor uses 24-bit/48kHz digital audio conversion and provides advanced audio processing functions for precise control of conference and presentation audio. It supports functions such as equalization, frequency filtering, feedback suppression, noise reduction, and echo processing, helping maintain clear and intelligible speech during meetings and professional presentations. The unit also supports 48V phantom power, making it suitable for professional microphones and conference microphone systems.

The CX-C6643HD is designed for flexible system integration and includes RS232, RS485, RJ45, USB, and GPIO interfaces. The RJ45 interface can be used for computer-based system configuration, while RS232/RS485 interfaces support connection with other AV equipment such as cameras and audiovisual matrix systems. The USB interface supports recording and broadcasting functions, and the programmable GPIO interface provides additional control possibilities. Its 1U slim rack-mount design makes it easy to integrate into professional AV equipment racks.