Some of these grounding boxes cost many thousands and the ground wires can go for 300.00-400.00 a pop. No thank you, my system is quiet enough without it. IMHO, it's a money grab from the manufacturers. I guess they just figured out another way to get money. I am not saying they do not do anything as I haven't tried them, but can you really and truly hear the difference and is the cash outlay really worth it?
Grounding Box Q
I watched a rather long video by Calvin Gabriel from Shunyata talking about his grounding boxes. Let me just say that, based on the large number of people buying these and other expensive grounding devices, I believe that they must do something positive, but here’s what I don’t understand. If only a ground wire is plugged into the box, how can any current flow into the box? I thought you need both positive and negative. Or is it something like the ground wire on a turntable, where you just hook up a ground wire and it kills the hum?