SENNHEISER ADN CU1-EU The digital discussion central unit Features: Supplies up to 40 and controls up to 400 discussion units Integrated PC with pre-installed control software Graphical user menu in 13 languages Open Media Control Protocol over Ethernet (compatible to Crestron and other brands) Specifications: Dimensions 417 x 100 x 345 mm Frequency response 100 - 14000 Hz THD, total harmonic distortion < 0,01% A-weighted at +6 dBV IN, OUT Weight approx. 6.5 kg What's in the Box: ADN CU1 central unit DVD-ROM with Conference Manager software and manuals Quickguide Mains Cable EU / UK / US ADN Conference Manager