GENERAL UPDATE CONTINUING :
I had counted 15 big "golden" plates in my system + 15 small one...
The sound will be compressed if the G.P. are too much near amp, dac, cd player etc...
In general using them with tourmaline or Herkimer Diamond or quartz will be balancing or compensating, decreasing the compression, increasing all positive effects...
The most effects will be on the breaker panels and behind speakers...
At the end effectively located, with compensating stones, I had 3-d imaging, with no compression, on the contrary an atmospheric imaging...
The key is to experiment because each audio system is very peculiar and ask specifics tweaking...
My best to all...