Discussion System with one chairman console and up to 59 delegate consoles, manual mode activating the microphone via push button or automatic mode with voice activation of microphones, automatic noise adaptive threshold for microphone activation, circuitry to activate only the single best microphone per talker and automatic adjustment of overall gain for multiple open microphones to avoid possible feedback. Delegate console with telescopic, fold-out microphone arm and integrated light-ring, interchangeable electret-condenser capsule with supercardioid polar pattern, integrated loudspeaker and adjustable headphone output. Large push-to-talk button that serves as mute button in automatic mode. Non-reflective, scratch- and stain-resistant finish, 2 m Bus cable included. Chairman console like delegate console plus LCD and menu buttons for system setup (mode, limit, volume level), dedicated buttons for priority and cancel func-tions. Limitation of simultaneously activated micro-phones from 1 to 8. While limit is set to 1 the active speaking time is shown. Power supply with 19" metal housing, 2U, with adjustable balanced mic/line input and switchable phantom power as well as balanced audio output and monitor section including a headphone output. Balanced audio interface for connecting external telephone hybrid and integration of external automatic mixers into the auto-matic mixing functions of the discussion system. 10 m cable and splitting adapter included. Power Supply C1-PS 60i E Mains Voltage / Power Rating: 220 - 240V AC, 50/60 Hz / 330 VA Maximal Input Level / Input Impedance: Microphone: -26 dBV / 8 kOhm Line: +6 dBV / 8 kOhm AUX: +6 dBV / 50 kOhm AEC/Telco: +20 dBV / 50 kOhm Maximal Output Level / Output Impedance Line: +18 dBV / < 20 Ohm AUX: +12 dBV / < 20 Ohm AEC/Telco: +18 dBV / 200 Ohm Connections Bus: 2 x SUB-D25 backside, 1 x Minicon front Mic/Line input: XLR / 1/4" stereo jack combo 2 x RCA Line Output: XLR + 2 x RCA AEC/Telco: 6 pin phoenix Dimensions (h x w x d): 88.1 x 482.6 x 237 mm (19" / 2U) Net Weight: 7.8 kg Consoles Power Rating Delegate Console C1-Di: 1.7 W Chairman Console C1-Ci: 5.3 W Microphone Type: Electret-condenser, supercardioid Microphone to Audio Output Frequency range: 100 Hz - 15 kHz Distortion factor: <= 0.3 % Audio-Input to Audio-Output Frequency range: 50 Hz - 18 kHz Distortion factor: <= 0.3 % Connections Bus: 2 x Minicon Headphone: 1/8" stereo jack Dimensions (h x w x d) Delegate Console C1-Di: 85 x 165 x 210 mm Chairman Console C1-Ci: 85 x 265 x 210 mm Net Weight Delegate Console C1-Di: 0.7 kg Chairman Console C1-Ci: 1 kg