Coffee Appreciation

I’ve seen at least an extra zero on top of that with frequency and voltage conversion for power isolation. The HiFi world pales the coffee world into insignificance! That’s before you get into tube rolling and that’s before you get into 6-figure bespoke triodes! Plus the rest. It’s a mad world.

I don’t understand stuff like this at all - because surely it’s the actual power source and how clean the earth itself is that’ll matter. Rather than what happens between socket and connection point?