Sorry to have disappeared. Simply missed the follow ups until now.
Lalit - interesting finding with your Nordost grounding gear. Any theories as to why?
klh007 - I would agree that running multiple components through the same grounding cable to the same grounding point should reduce ground differential between those components, thus potentially reducing the noise floor.
I recently added a SR Active Grounding Block and am amazed by the resulting improvement in sound quality. Blacker background, more relaxed and refined highs, and a wider and deeper soundstage with improved layering between instruments/performers.
I have been experimenting with different DIY grounding cables (varying gauges of copper, silver, and silver-coated copper wire) from the Active GB to components and the differences can be clearly heard. Don’t understand why but it is so. So far, of what I have tried, I prefer 18 gauge 99.99% pure silver wire in a Teflon tube.
Dave