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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: The lifted groundPosted by Romy the Cat on: 3/27/2011
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Reading today about Mani’s Star Ground idea I was thinking that in context of playback we do not truly know the extent of “Star-ness”. If we do not know how each particular component use ground and we can’t not be 100% sure that our primaries and front end of components are true star jointed by ground.

I run all completely single-ended playback. I have a few balanced components but I used them in single-ended mode. Up to two years back I ran my entire playback with completely lifted ground, I mean there was no reference to ground of any kind. I do not need your posts about dangers of this application, I know it. Be comforted with the fact that I was doing it got 8 years and I am still alive. Abound 2 years ago when I sensed my PP2000 was a bit loosing I switched t a configuration to run all everything directly connected to PP2000, including the grounds. At that time I felt that it was better.

Today I lifted grounds on all element of my playback and lifted them in more or less Star configuration – each individually. I have now PP2000 outputs just Not and Neutral and nether wall or PP2000’s ground used. The ground of my playback is completely floating now, having 2.2V between PP2000’s ground and playback’s single-ended ground. I do like Sound now, in fact better then before. There is a very fine touch of “glassines” that got removed from upper range; the upper notes got a very minor addition of texture, texture but no brightness – a positive sigh indeed.

Interesting that if I am trying to add any reference to my playback ground then I pick up some upper frequency loop – it means I have some path somewhere to ground that I need to find. I think it is via the network cable that is connected to my DAW.  I would like to have one “explicit ground” but it will it be all depending the sonic consequences it will have. Let see how it goes.

The Cat

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