jitter
I was assuming (please don’t give the overused definition of assume) that if a component has power that it would be full power, all or nothing if you will. I never thought that cleaning the outlets and pc prongs could make a sonic difference.
Never assume anything. When you ass-u-me something you make an ass out of me and Uma Thurman.
Jitter
Does someone use a cleaner on them, or just unplug and then re-plug in the power cord a couple of times and the abrasion cleans the prongs?
Use a cleaner and contact enhancer. Hint: Don’t forget the female contacts of the wall outlets. And don't forget the refrigerator, computer, TV, floor lamps, etc.