Per this text in the manual, it would seem that the analog inputs are not digitized. However, if you use the Main/Sub mode on analog stereo sources, there has to be a crossover. An analog crossovers.

Or maybe the analog stereo inputs really are digitized, and Outlaw are more or less unaware of that fact. If you use the FM tuner (an analog source) and press the Info button, the third item being displayed is "PCM". Which is the technical term for a digital signal... makes you wonder what's going on there!