The HCS-48U7DMICSPK/50 is a Fully Digital Congress System Delegate Unit. This delegate unit meets the basic demands of most conferences. It provides facilities for speaking and registering a request-to-speak. Excellent immunity to RF interference from mobile phones. The loudspeaker offers superior acoustics with minimal feedback for enhanced intelligibility. Compliant to IEC 60914. “Closed Loop - Daisy Chain” connection topology for a high operational system reliability: breakdown or replacement of a congress unit and connection failure of a cable will not influence other congress units. Based on TAIDEN originated MCA-STREAM digital audio processing and transmitting technologies. Proprietary MCA-STREAM technology used to transmit fully digital audio between the congress units as well as between congress units and main unit(s). Audio signals processed by high performance DSP: sound quality approaching CD quality. Gain and EQ (5 band) of each microphone adjustable separately, fitting the individual orator’s voice to achieve perfect speech pickup any time. Supporting 48 kHz audio sampling rate. Integrated high-pass filter (low-cut switch) to cut low frequency elements from the audio when needed. Automatic system recovery and “PnP” (plug and play). Stem microphone can be unplugged during adjournment, easy to maintain.