I'm relatively new to all this and having lots of fun
Using the USB output and X10 supplied XMOS XS1-L1 (ST) device driver
I was running MPC-HC with LAV codecs and fixed output 192k
The sound was excellent but I didn't think I was getting the full potential of the x10
So I downloaded JRiver (30 day trial) and discovered I have a lot of upsampling options.
Note I am using a Windows 8.1 notebook with i5 m480 @ 2.67Ghz
Average CPU usage is 15%
I started playing with the upsample rate settings
playing a 64bit mp3 file
384 sounded a bit confused
192 was a lot better but not as good as the MPC-HC
I then looked at the DSD options
2xDSD in native format did not work - maybe something to do with my ASIO driver - I installed ASIO 4ALL
2xDSD I n DoP format was OK but I noticed some distortion (showed as DSD128 on the x10)
DSD in DoP format sounded the best, especially when playing FLAC files (DSD64 on the x10) - almost like being inside the recording studio - better dynamics than the LAV codecs.
I am still undecided whether to purchase JRiver (US$49)
JRiver has TOO MANY OPTIONS to process in a single sitting.
If someone could advise me on a better setting I shoud try please let me know.