Сабж. В очень хорошем рабочем состоянии. SENNHEISER SDC CU Features • 150-14000 Hz frequency response • < 0,1 % THD • Controls up to 150 conference terminals • 11 analogue line inputs • Three conference modes • 4,6 kg The SDC CU central unit is designed to control conference systems with up to 150 conference terminals. Three cable lines with 50 terminals each can be connected to the unit via CONFERENCE BUS OUT I-II-III. Its internal PSU powers up to 25 conference terminals (larger systems require additional power supply units). Up to four central units can be linked with system cables to create conference systems for up to 600 participants. http://www.sennheiserusa.com/newsite/pdfs/SDC3000CU.pdf Специалисты знают, что это за устройство, + кабеля к нему.... Сделано в Германии.
