I understand this is an extreme case, but it shows how poor power supply is clearly visible in the output.
@amirm , could you do a post on how a few other products may test differently using 1. Wall-outlet power versus your lab supply and 2. Different power cords. That would answer the age-old questions in another area of audiophile voodoo.
Otherwise, could you/our panel experts pls direct me to other previously done studies on this?