dudu0101 That's fair enough, you've spent enough on the nice hardware. Though for what it's worth, try think of the onboard DSP as a good thing. There's not much harm from processing the same digital signal twice. The GUI based time alignment and quick EQ sliders are good for some rapid tuning and for passenger targeting without having to have a separate DSP preset or whipping out the laptop.
With that said, I don't have the option available on my 7862 for spdif passthrough, and I would like the option to choose.