Yes but they are converted to analog and sent down through independent analog filters, summed in analog. I'm not sure how these SHARC chips differ from a single software approach, however, I did notice the very high end starts to roll off just before 10k. Maybe this was intentional to avoid the effect, not sure, but whatever the process, the Prophet 12 doesn't suffer from the artifacts in the Hydrasynth. And even with this rolloff, it is a bright sounding synth.