I probably got needlessly complicated in my post. Suffice to say when I got the Bryston DAC3 I used the HDMI input for everything, SACD and red book, as the HDMI inputs seem to give results equal to their other inputs. My room has some oddities, and I was using Room Correction software in my other systems, so I thought I would try some RC in the two channel system, thus the mini DSP, which won't work with DSD. So the SACD replay doesnt get the benefit of room correction, but otherwise sounds outstanding as the DSD layer of the SACDs is outputted into the DAC.
Regarding Marantz SACD players-I have owned a few, and they are very satisfying, but they do tend to roll off the top end. Since most music lives in the midrange, this may not be terribly important, depending what you listen to