Clean ground


I’m wanting to establish a clean ground for my audio equipment. I get power off batteries, so live and neutral is not an issue. However, I have components that require ground/earth. I do not want to use the ground from the wall sockets as that will probably noisy.

Has anybody establish a separate ground for their audio equipment? What is the best way to go about it? 
Thanks.
pauly
Pauly- here's an example, I think you can get these cheaper and they are sold on Amazon as well.
I will also try to take a photo of my set up that better shows the bar and post it later. In the meantime, here's the commercial site
Great thanks. The McMaster-Carr site has given me a good idea what they look like.




Are you familiar with a marine DCV grounding system? It's based on a star hub grounding system. When you dock you can ground your star hub to the docks ground.. or in your case a new copper ground rod driven in the earth. It has to be completely separate from the house earthen ground.. Your battery charging system is the issue but only when charging..

Every device needs a - and + to work, all devices - are tied together on the star, and the star to the - side of the battery. The + side is the fuse side. The closer to the battery the better.  Use a GREAT automotive or marine fuse bus it makes a big difference in SQ.. Each battery driven component gets it's own fuse..  All battery connections are treated with NoCo. It's a battery terminal contact enhancer and soft sealer..

I've done a few pleasure boat installs.. It's close as long as there is not an onboard AC genset.. Deep cycle DC sound systems can ROCK.

Regards
@oldhvymec- I'll bet you even know just how much air to let out of the tires to get the rig through an overpass. You should have seen the crane they brought in on an articulated multi-wheel chassis- my property isn't huge and they man handled this Liebherr crane into my front yard to take down a 90+ft plus pecan that had to go. Watching these guys work was a trip. It was heavy hydraulics, I guess, but guided by computer precision. The crane operator knew exactly how much each chunk of tree weighed as they started at the top, and over two days, cut it down to a stump. 
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