Connectivity: 6 inputs: 2x combo-XLR/¼” TRS line inputs with 48V phantom power, and gain control for flexible stereo recording, 2x ¼” TRS line inputs, 1x SPDIF digital stereo input (RCA) 1x MIDI in 6 outputs: 4x DC coupled ¼” TRS outputs for modular control*, 1x SPDIF digital stereo output (RCA), 1x MIDI out Audio Quality: Premium quality at 192 kHz / 24-bit 4x LED input VU meter 1x LED output VU meter 48V, USB, and MIDI status LEDs Direct monitoring with mono/stereo switch and channel switching (1-2 / 3-4) for blending audio playback while recording Big volume knob for quick volume adjustments 2x headphone out with high-power output and individual volume controls USB 2.0 bus-power – no additional power supply needed Compatible with Mac and PC (ASIO/Core Audio/DirectSound/WASAPI) Kensington Security Slot *Limited to +/-2V range due to the AUDIO 6 being USB powered.