I copied this from avsforum
here about half the page down.
For the vast majority of receivers, DSD vs PCM from the player for SACD won't make a wit of difference.
That's because receivers do their processing in LPCM, and so they first thing they do with DSD input is convert it to LPCM anyway.
For a VERY few receivers, there is a DSD pass through path which will send DSD straight to special DACs for conversion to analog for output to the speakers. In such cases, some people feel that DSD is better. But the cost of this is that you lose any ability for your receiver to do any processing on that audio.
As it turns out, the 93's own DACs are of the special variety that can convert DSD directly to analog. So if you use the multi-channel analog outputs of the 93, and have SACD DSD set, that's exactly what happens. If you have PCM set then the DSD from the SACD disc is converted to LPCM first and that's what's sent to the DACs.
