A little confused on what the best practice for volume control is here. Roon Core is on DS1019+, laptop via ethernet, connected to LS50W via USB using alsamixer (this will be replaced with a Raspberry Pi 4 at some point).
For volume control, options are DSP Volume, Device, and Fixed. Device volume seems to just control the volume slider on the PC, and not the LS50W, and I can still adjust the volume in the KEF app separately. Is there a functional difference between DSP Volume at 0db and Fixed? Which setting should I use in this scenario to sent the “bit-perfect” sound to the speakers?