PreSonus FireStudio Mobile || PreSonus AudioBox 44 VSL || Alesis Active M1 MkII || CME XKey || NI Maschine Mac OS X 10.9.3: MacBook Air 13' - Core i5 - 4GB Ram Your best bet might be to export midi, audio and presets from Sonar to S1. I took a quick look over at the SSL site, Pro-Convert doesn't seem to support Sonar either.
The Steinberg XML is the only other format I think S1 will take.
