@burki
The topic of DSD upsampling is currently under internal review and research, and we are also evaluating the overall feasibility, including the hardware performance of the RS130.
As you correctly pointed out, DSD signal processing is structurally different from PCM, and we are aware that the currently implemented VU meter logic does not function properly during DSD playback.
If DSD upsampling is added in the future, we agree that the VU meter implementation will also need to be fully reviewed and improved so that it can correctly respond to DSD signals. Your feedback has already been shared with our software team for reference.