jupiterboy Posted June 18, 2020 Share Posted June 18, 2020 Hi, I have a Nirvana SMPS and was wondering about the grounding lift function. After initial set up I noticed that if I turn the ground ON I get a pulsing noise in the speakers. If I connect a grounding wire from the Nirvana ground terminal and connect it to the ground on the power distribution center for my stereo components, there's no change. I am obviously leaving it OFF, but I'd like to understand more about the circuit and this aspect of the design. Link to comment
allo.com Posted June 22, 2020 Share Posted June 22, 2020 Earthing is a very complex subject. To make clear , "it depends on your system" Use whatever sounds best . To go into details more.. Nirvana casing and AC its earthed (AC is EMI filtered to earth). When you switch ON , your DC is also connected to earth . Of course you can leave your DC floating and connect Earth lug to earth of your device . Link to comment
allo.com Posted June 22, 2020 Share Posted June 22, 2020 Manual will be available by tomorrow the latest Link to comment
jupiterboy Posted June 22, 2020 Author Share Posted June 22, 2020 30 minutes ago, allo.com said: Earthing is a very complex subject. To make clear , "it depends on your system" Use whatever sounds best . To go into details more.. Nirvana casing and AC its earthed (AC is EMI filtered to earth). When you switch ON , your DC is also connected to earth . Of course you can leave your DC floating and connect Earth lug to earth of your device . Thanks you! Yes, complex. My turntable has a psuedo balanced cable with the shields grounded, the tonearm is grounded, as well as the turntable motor. It's trial and error to get the noise as low as possible. Your explanation of the grounding switch helps. Good to know that the switch is not engaging the grounding lug at the back. Looking forward to the manual. Link to comment
allo.com Posted June 22, 2020 Share Posted June 22, 2020 Try one thing. Keep the SW off (DC floating) and connect earth lug of Nirvana to earth on your load. If you don't have a earth point. just try to connect to casing (it should be your load earth) Link to comment
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