Alesis IO 26 24Bit/192kHz capability for ultra highquality recording - pro studio software included Flexible, routable Hardware Direct Monitoring with 2 discrete stereo headphone outputs 16 channels of ADAT input, 16 Channels of MIDI I/O, stereo S/PDIF digital input, stereo turntable input 8-High Definition Mic/Line Preamps with switchable 48V Phantom for each pair - (2 switchable highimp inputs for direct guitar and bass recording) Bus or adapter powered with professional multi-track studio recording software included (Windows and Mac compatible)