The Classe SSP 800 supports multiple HDMI inputs at level 1.4, and also XLR Analog Stereo in. HDMI 1.4 inputs should thus fully support digital HDMI Audio from the BDP-95, including SACD, and is recommended by the Classe Manual as the preferred audio input pathway.
However, the fact that the BDP-95 has multiple Sabre DACS dedicated to the stereo conversion with analog XLR out in PureAudio mode, it will be interesting to compare SQ via these two different options.
You can perform a similar analysis for the Krell, and suspect it might show similar compatibilities, but have never heard of anyone being disappointed with a Classe component.
This looks like an incredible matchup, and would also provide an upgrade path with the newly released Modwright tube truth mods for the BDP-95.
Hope this helps, pls let us know how it works out!