tecknik,
Well I am still experimenting. I have removed the Russ Andrews ground lead to my Niagara 7000. I think the Niagara does more ground clean up by itself.
So, today I have the Russ Andrews unit leads to the chassis of my Lumin X1 power supply and the JL Audio CR-1.
I am still running separate signal grounds from the rca’s on the equipment to my Entreq/ DIY grounding boxes.
ozzy