Could we by any chance see a software update for the BDA-2 to play back DSD files?
It's capable hardwarewise,why not then?
While the DAC chips in the BDA-2 are capable of DSD decoding, the problem lies in the sample-rate converter (SRC) used in the BDA-2. The signal has to pass through it for reclocking and resampling as it is a part of a jitter-reduction method in the BDA-2. To convert DSD, this SRC would have to be bypassed and to do that would mean compromising PCM decoding.
This is why the BDA-3 has two separate circuits. Once the machine detects a DSD dana stream, it bypasses the SRC automatically and relays the dana directly to the filter stage of the DAC. This is how it's done in SACD players as well.
I own a BDA-2 as well so I read a lot about it's design.