Can a power cord increase the resolution of an Class D (SMPS) amp by more than 5% ?

dhawks3001

So almost nothing. Your numbers are so precise!

What does a power cord do?  Delivers power.  Rather than invest a bunch of money on an over priced power cord. Your money would be better spent on a line power conditioner from APC or tripplite. Class D has an RF power supply like used on computers. A.C.  Line noise would affect it just like a computer. The music would be affected by error correction from RF.  Class D processes music as 1' s and 0's. I am betting these upgrade cords have RF filtering.  The manufacturer would not send an AC cord too small. 

amg56
IMHO grounding the shield effects the EMF.

>>>>Seems unlikely. Any evidence? Why would you NOT ground the shield? Pardon me for saying it sounds like a WAG.