The CX-C6641H / C6642H / C6643H / C6644H is a professional digital audio processor series designed for advanced audio management in conference systems, meeting rooms, stages, stadiums, churches, auditoriums, and other high-quality sound environments. The series provides different channel configurations, allowing users to select the appropriate processor according to the size and complexity of the audio installation. The models offer 4×4, 8×8, 12×12, and 16×16 balanced analog audio input/output configurations, respectively.

The processor uses 24-bit/48kHz digital audio conversion and provides a comprehensive range of DSP processing functions for both input and output signals. Input processing includes equalization, compression, automatic gain control, automatic mixing, feedback suppression, echo suppression, and noise suppression, while output processing provides limiting, equalization, frequency division, and delay. This allows the system to be carefully optimized for different rooms, speaker configurations, microphones, and audio sources.

The CX-C6641H series also provides flexible system-control and integration options. It includes an RJ45 interface for computer-based configuration, an RS232 interface for integration with third-party equipment such as audiovisual matrices and cameras, and 10 GPIO inputs with 4 GPIO outputs for external control applications. Built-in PC software allows system setup and parameter management, while the slim 1U rack-mount design makes the processor easy to integrate into professional AV equipment racks.

The four models provide different levels of system capacity: C6641H offers 4 inputs/4 outputs, C6642H offers 8 inputs/8 outputs, C6643H offers 12 inputs/12 outputs, and C6644H offers 16 inputs/16 outputs. This makes the series suitable for installations ranging from smaller conference rooms to larger professional audio environments requiring extensive signal routing and processing.