By using TAIDEN originated MCA-STREAM multi-channel audio digital transmitting technology, TAIDEN HCS-4100/50 Fully Digital Congress System (FDCS) revolutionizes conference systems technology by incorporating both the latest fully digital technologies and network techniques. Furthermore, with perfect integration of TAIDEN Conference Sign-in System and Intelligent Central Control System, HCS-4100/50 takes the leadership in providing comprehensive and efficient digital conference system solutions. "Closed Loop - Daisy Chain" connection technology, to connect all congress units and simplifying installation, as well as dual connection backup have been opted for. Supporting 48 kHz audio sampling rate, all 64 channels with a frequency response of 30Hz to 20kHz.