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Floating ground: Any danger? Alternatives?

I have noticed that in my system even with power conditioning and aftermarket pc, floating the ground on my cdp still helps to smooth out the sound and reduce some digititis. I'm concerned as to how dangerous this is considering I've heard stories about fire, shock, insurance issues that come with doing this. Does anyone know what real risks I'm taking by doing this and whether there are alternatives that will yield the same benefits.

My guess is I would prefer to not float anything, but look for alternatives that will provide the same results without incurring some of these risks.
I have installed Hubbel outlets, clean the ground connections, a couple of Bc MkII, two Purist Venustas pc connecting to and from an AM mini digital with a Mapleshade powestrip all solely on the cdp, on a separate line from the rest of the system. Since digital is my only source, I try to clean it up as much as I can and floating the ground at the outlet still helps with all this stuff in between. I would welcome any suggestions, eventhough I've been contemplating getting into analog. My thanks in advance.
Mhu
mhu
jmcgrogan2's avatar
jmcgrogan2
6,346 posts
 
One alternative is to run all your components through one dedicated outlet. There is no chance of differential in ground then. Of course you'll need to make sure the one line has enough power, possibly a 30A line.
I originally had two 20A dedicated outlets installed, after I tired of chasing ground loop hums and placing cheaters on expensive power cords, I had one outlet re-wired for 30A, no more cheater plugs or buzzing.
swklein
136 posts
 
My dealer suggested to leave My Hydra and my preamp grounded, and float the ground on all of the other equipment. Apparently having one ground to the wall and one to a processor in a system all linked together is sufficient.
alrau1's avatar
alrau1
56 posts
 
It's completely safe, UNTIL YOU DISCONNECT YOUR INTERCONNECTS. The floating component may then kill you, if everything goes wrong a la Murphy's Law.

The ideal is for every component to have a ground-lift switch, which keeps the case grounded while allowing the circuitry to float. This is much easier to do when the component is being designed, rather than after the fact.
nsgarch's avatar
nsgarch
2,524 posts
 
Get a balanced power unit from Equi-tech, ExactPower, or Balanced Power Technologies. You'll never have anymore noise. You won't have to lift any grounds. You won't have to use any other kind of power conditioning/filtering equipment. The music will be more detailed with a lower noise floor (especially with analog). Your digital equipment will still introduce RF into the line, but some of the BPU's (ExactPower) incorporate digital filtering into their units. It's definitely the way to go. And if you live somewhere (an apartment, like I do, or even your own house) and you can't put in dedicated lines, try ExactPower's power regeneration unit in combo with their BPU. You'll love it!
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