dsf to wav : what CPU power ?

[chip]

Hi Simon,
I have tried my system using the following parameters in MinimServer and using BubbleUPnP as the control point.
stream.transcode results
"dsf:-/dopwav" plays DSD64 files as PCM24/176.4 and DSD128 files as DSD128
"dsf:-/wav24;176" plays DSD64 files as PCM24/176.4 and DSD128 files as DSD128
<empty, no values> plays DSD64 files as DSD64 and DSD128 files as DSD128

The results are shown on the display of my PS Audio DirectStream DAC.
BubbleUPnP shows WAV in place of PCM and DSF in place of DSD but since is really saying the same thing I think it is OK.
If I do not use any transcoding options I can playback native DSD64 and DSD128.
If I use the either transcode option I end up with PCM24/176.4 for DSD64 and native DSD128.

Now this seems even more confusing since my Sonore can send native DSD64 and DSD128 and the PS Audio DirectStream DAC will playback both DSD formats from native DSF files and DoP if I do not use a stream.transcode value.
If I setup MinimServer to send the format based on the renderer it will not send DSD64 even as DoP.

Any ideas?
Chip