Recommend amount of grounding rod for audiophile system

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More is better. I have a total of six, including the two original.

Do you water your ground rod?

I had to stick to the original plan for now, running four 1" diameter 10ft long ground rods offset 18" deep into the front yard. We placed the initial rod 12 ft from the current rod and 12ft separation between each new rod down to the sidewalk. A continuous 4awg solid wire was bonded to each rod with 180lbs of clamping pressure and bonded to the original front yard ground rod. The result of the work is a 4x decrease in ground resistance. Before [IMG_20210822_110826] After [IMG_20210912_16…