Thanks Ozzy for your help. I have implemented this on my system. I have the 6 volt system on my Legacy Helix speakers and had to make a special rig since the speaker is quad amped. It took a while to figure how to do all thee speaker terminals for each speaker but I got the job done. I also made the rig with the nine volt batteries one for my Perfect Wave DAC and one for Ref 3. The tweaks make a subtle but worthwhile improvement. I believe it lowers the noise floor which lets little subtle details escape from the background. Voices seem silkier and more natural.
Soundstage seems to be wider and deeper. It is funny that one can hear the system improve as the caps charge up. I'll bet there is a break in period as well.
For those who have made the devices for the speaker terminals on your amps, did you use 6 volt or 9 volt? Does one find the same improvements? I wonder is this tweak could be implemented on my server and power conditioners as well? Any ideas?
For the small amount of change and investment in time this tweak pays off handsomely.
A friend with a very high Rez system did the tweak for his speakers with great results similar to what we've found, but it did not work well with his Gryphon preamp or Theta Gen 5 DAC. The tweak shut down the soundstage and the system sounded constricted. So this tweak may not be for everyone.
Again thanks for all the ideas and descriptions of this tweaks virtues.
SGR