01-Sep-2020, 18:35
If it's the difference between essentially no DSP and "full-on" DSP, I could imagine the DSPs might use several Watts extra, measured at their supply rails. With inefficiencies in the power supplies and inaccuracies in the measurement method, it's not too much of a stretch.
Roon (Mac Mini), Wilson Benesch Full Circle, Expert 1000 Pro CI, Kaiser Chiara
Warwickshire, UK