OK he asked you to read about the WDM driver first!
Here is a short version.
JRiver does take over your DAC, correct, however, JRiver as well as being a mediaplayer, it is also a stand alone sound processor! it works like this:
- when you install jriver, it also installs a WDM driver, basically it is virtual sound card.
- you choose JRiver mediacentre (within your sound playback devices) to be your default playback device.
- you tell JRiver to start with windows, in order for this functionality to be available.
- If you play anything outside of JRiver, it will go through JRiver!
- benefits are , bit-perfect playback + full use of DSP + JRiver 64bit volume control.
What more do you want?