Dangerous Music Source, Monitor Controller, With USB and D/A converter, Connection of 2 monitor pairs - can also be switched simultaneously, 4 Input sources: 2x analogue, 1x AES / SPDIF and 1x USB, AES/SPDIF with thru-port, 2x Headphone jack - monitor output or multiple sources, Analogue input 1: 3.5 mm mini jack stereo -10 dBV, Analogue input 2: XLR / jack combo jack, USB input with up to 24 bit/192 kHz for Windows and Mac