I bought a copper grounding rod years ago from what was then called RATA (Russ Andrews Turntable Accessories) which I never used as I was shit scared of banging it into the ground and bursting a pipe or hitting 240vac. Went to stay with my long term audio mate to attend the Tonbridge Audio Jumble and we were discussing these grounding boxes. What did he then produce......but his DIY version. Filled with several different kinds of magic stuff and other bits attached to a 4mm post. I will have to wait to hear from him as to what this does in his system, but I mentioned my copper rod and he said that they can be laid flat.....FLAT! I never knew that.



So over the next couple of days I dug a trench, lay the rod with 16mm2 earth cable and terminated with bits that allowed me to attach a standard RCA plugged interconnect (with signal core disconnected).

Then I wired it in to a spare socket and had a listen. I just wanted to listen to some choons and chillax, so I had no intention of adopting the "critical listening" mode.



I have read that those grounding boxes seem to tighten and deepen the bass (my mate told me that an earth rod works in the same way) and I think there may be something in that. A few weeks on and what I hear seems more relaxed, but no less detail and the bass is better.

Anyone else use one as a signal ground?