Aplhifi, perhaps but I'm now using a music server with double DSD output from the dac. The BMC, at least cannot play this.
Tbg, the DSD-S can surely play double DSD (DSD128) and the DSD-M can play quadruple DSD (DSD256) at 13.5MHz.
However, as we discussed today with a respected reviewer, it is not the format (PCM or DSD) and it is not the rate that matters that much. Simply, it is all about implementation. :-)
Best,
Alex Peychev
APL Hi-Fi