ground control devices

A wire is connected from the grounding box to a component. You can connect to the chassis ground of a component (i.e.: amp, dac, pre, phono) which is usually the best however SGS is rather unique as you can do signal ground as well, ITS ONE OR THE OTHER BUT NOT MIXED. Again it took a bit of experimentation but once I found the right area it was pure bliss. For me I connected it to my amp and my line controller (which is basically a pre-amp/dac combo) and then also to my phono. 

I heard a demonstration of the Nordost grounding system at a local dealership.  The system had multiple dedicated power feeds from a dedicated subpanel and was dead quiet.  The addition of the grounding scheme improved the sound to a surprising extent—instruments seemed to float more freely in space instead of being pasted to the back wall, small detail and dynamic changes were more natural.  I would have bought the system except for the fact that it must be hooked up to an unused input on each component and iI don’t have such an input on my amp (chassis ground does not work).
It is certainly something to look into, at least as effective as good power conditioners, in my experience.

@sksos

To confirm I understand correctly; the grounding box is connected to a component (DAC, amp, whatever) via grounding post, or other grounding (single wire).

The grounding box is NOT plugged into the mains - i.e. it is a passive device.
The component (DAC, amp, whatever) still uses a regular 3 prong AC cable meaning the component is still connect to the mains ground.

Question; have you ever used the device and while the ground from the mains is disconnected from all your components? 

The reason I am asking is I use batteries and have no mains ground. When I connect to mains ground, I pick up noise. For safety reasons, I’d like to have mains ground connected. I’m wondering if a grounding box would allow me a connection to mains ground w/o the additional noise.
Thanks.

Anyone have experience with the Puritan grounding box?

@pauly yes the wires are connected FROM the grounding box to each component. Each component is still plugged into an outlet but the grounding box is a passive device and does not require AC to operate. 
I could not tell you if using the SGS while your own components are connected to the AC outlets if it will eliminate your noise issues. There's only one way to find out and that is to try. Where are you located?

Steve
SOS

(Dealer disclaimer)