Please help me to understand, I'm curious to try this speaker grounding tweak since my speaker cables go directly into a floor hole and are suspended in the rafters of my basement.
So I can run a wire from the black '--' speaker terminal to either the copper water pipes below (the panel box ground runs directly to an outside copper ground rod) or since it would be easy to drive a grounding rod underneath the speakers this is prefered? I can also easily do this at the amp '-' and compare the two spots and the two grounding strategies..
Thanks much.