Thanks for the additional info. I don’t think this is a ground issue. Ground issue problems are normally hums and buzzes. It’s *very possible* that the reclocker is producing more correct tonality when plugged into the Torus, but no one can really say for sure, but since you can tell the difference in sound between it being plugged into the Torus, and not being plugged into the Torus, why not just go with what is more pleasing to you (I realize it’s a stupid silly answer to a more complex question)? Unfortunately I don’t think I’m going to be able to give you any kind of scientific reason why the difference in sound is taking place.
Would the simplest approach be to just get a cable that connects the ground terminals of my Torus and Diablo? If so what type of cable do I need?
You could always give this a try if you wanted to. You’re technically not grounding the units (as they are already grounded when plugging into the wall outlet), but instead you are "bonding" them. Any 18-14 AWG wire would work for this. Believe it or not, many electrician’s many times confuse the terms bonding and grounding. Come to think of it, I rarely see the term bonding mentioned on this board.
Sorry I couldn’t help more.