Inputs and Outputs 6 Symmetrical outs with +4dB studio level Optional Soft Limiting for every output 192 Khz/24bit D/A converters 2 Inputs with 24-bit A/D converters 4 different input sensitivities USB for audio, midi and data connection USB2 compatible device, 12Mbit data transfer rate S/PDIF In/Out for Digital I/O. Dedicated headphone out. Pure Tuning (Licensed) Compatible sequencers Macintosh Apple Logic 9 or higher. We recommend Logic Pro X Steinberg Cubase 5 or higher, Cubase 7 or higher is recommended Pro Tools 7.3 M-Powered, LE or TDM or higher. Protools 12 and higher is not supported Ableton Live 7 or higher. We recommend Live 9 Windows Steinberg Cubase SX/SL 4 or higher. We recommend Cubase 7 or higher Pro Tools 8 M-Powered, LE or TDM or higher. Protools 11 and higher is not supported Cakewalk Sonar Producer X Ableton Live 8 or higher. We recommend Live 9