Warren, some line conditioner are better at bi-directional line conditioning than others and often times will state so in their literature. Filtering the noise going to the component and back out into the line.
Whereas others are absolutely one way only. And of course the line conditioner allows the digital noise to get back into the line to share with other components on that line.
Even if your line conditioner is bi-directional, you're probably better off to plug the digital source into a non-audio line with your digital line conditioner.
As to the grounding issue. I'm not grounding any of my components. To minimize ground loop problems, I would think you'd want all of your components to share the same common and isolated ground.
Correct me if I'm wrong.
-IMO
Whereas others are absolutely one way only. And of course the line conditioner allows the digital noise to get back into the line to share with other components on that line.
Even if your line conditioner is bi-directional, you're probably better off to plug the digital source into a non-audio line with your digital line conditioner.
As to the grounding issue. I'm not grounding any of my components. To minimize ground loop problems, I would think you'd want all of your components to share the same common and isolated ground.
Correct me if I'm wrong.
-IMO