My 950 does not exhibit the digital-analog-back to digital hiss problem but this does not sound like a good thing. I do have a very small hiss on analog (inaudible from a foot away) and barely any on digital (ear up to the speaker) but it doesn't change with inputs. I also use a Monster HTS2000 power filter.

If it makes anyone feel better my Rotel 960A and Diva 2.1's hiss louder in my downstairs set up.