20 possible audio sources (9 stereo channels simultaneously): combo 1 and 2 (can be combined for stereo), wireless 1 and 2, video clips, sounds, HDMI 1, 2, 3 and 4 (each can be split for two mono), Bluetooth,3 USB audio interfaces (computers), 2 hosting USB audio devices (microphones)
12 Outputs with Custom Routing: live mix, headphone 1, headphone 2, recording, monitors, USB Main, USB Chat, USB 1, 2, 4 and 5, Bluetooth
Note: Each output can be independently configured with custom level, mute status and level offset settings for each of the 9 inputs