millercarbon wrote: I would just about bet the only other one that speaks from experience is kingharold, and he "wouldn’t stake his life" on there being any difference at all. "
For the sake of fairness I should add that I am seventy-two years old, and my hearing is not as acute as it was in years past. Sharp eared younger audiophiles might hear more difference between the wall wart supply and the Smart Power battery supply than I did.