PreSonus and OBEDIA Offer PreSonus Certified Music Computers June 18, 2014   PreSonus® announced the PCAudioLabs PSc Rok and PSc Rak computers powered by OBEDIA. These new state-of-the-art music-production computers are fine-tuned for optimal studio performance yet can handle the rigors of the road. Every PSc-series computer comes loaded with PreSonus Studio One® Professional 2 DAW, Captureâ„¢