bugredmachine,
Well, I have each speaker negative terminal connected via a silver wire to (2) small separate different DIY boxes. The amps and subs are also connected via a silver solid wire to one large DIY box with a separate terminal on each end. The Dac, etc. are connected to the Entreq Silver Tellus via a couple of their Atlantis grounding cables.
These are all signal ground connections. I used to be able to hear a faint low-level sound through the speakers from the tube amps at about 4’ away. Today, I have to practically put my ear inside the speaker to even hear try to hear anything.
Of course, that is without music playing. LOL!
And the sound quality is amazing these days very deep sound stage. I am impressed.
ozzy