Using D Prem as preamp

[thumb5]

Got it working.
So apart from assigning the digital inputs as the stereo pre amp outputs, you also need to configure the R button on the remote as pre amplified.
Then after you power on your dev. you press the r button on the remote and the screen show pre
...

It should be possible to make the pre-out work by default after start-up, so you don't have to use the remote control to enable it. Take a look at the "Startup mode" option in General Settings in the configurator: you should be able to select "Sub/preout" to enable it.