I believe that any bass management on the 5.1 analog inputs is digital (and hence worse quality) than the analog the 950 has.

Apparently (and yes, it's about time), standard DVD-A digital interfaces will be available soon!

The pristine sound of DVD-A and SACD is in digital form at their source.

When the digital interface becomes commonly used in future pre/pro's and receivers and even DVD-A/SACD players, the overwhelming majority of DVD-A and SACDs will be bass managed digitally.