The Kurzweil Unite-2 features two combo microphone/line inputs (with +48V phantom power) and a switchable Hi-Z instrument input. Special features include individual L/R outputs via a balanced 1/4-inch TRS connector, a headphone output with a 1/4-inch stereo jack on the front, 24-bit/96kHz AD/DA converters, and bus-powered USB 2.0 with full speed. No external power supply is required. Intuitive and convenient front panel controls for channel input gain (with peak level indicator), monitor, phantom power on/off, headphone, and master volume. Cross-platform compatibility for Windows (7, 8.1, 10 with ASIO 2.0, mme, WDM, and Direct Sound), Mac OSX (no driver installation required; 10.7 and higher via the native Core Audio USB audio driver) including Bitwig Studio 8-Track – the sketchpad for your musical ideas.