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tt ground to phono section. solid copper?
Has anyone experimented with a solid copper line to ground there tt vs stranded. also if I run a ground from my tt to my phono section will I get looping issues if it goes from there to my grounding on preamp? ( the phono is a MF mxvynl ,dc converstion plug two prong ) I am adding this and no longer going to use my inboard phono section,
Thanks
Thanks
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Connect the TT ground wire to the mxvynl ground post. You are no longer using the onboard phono preamp. The VPI TT doesn't even know it exists. |
Technically? To the signal ground of the phono preamp. The signal ground is connected to chassis. The fact that the preamp may also use the safety equipment ground, that is also connected to the chassis is irrelevant. The safety equipment ground is there in the event of a hot to chassis ground fault. The whole audio system could consist of equipment that uses double insulated AC power wiring and doesn’t use the safety equipment ground at all. Including the TT, no equipment ground. Where is the earth connection now? Disconnect the TT ground wire from the ground terminal post on the phono preamp and a buzz will be heard through the speakers. Reconnect the ground wire, no buzz. Jim |
erik_squires Yes, and the safety ground is connected to the chassis of the equipment it goes to. The screw/thread/ground connector next to the turntable input is connected to what, exactly? :-)It is connected to the phono cartridge, which is an inherently balanced system. That is, it has a hot and separate neutral for each channel, plus a ground. |
vpi classic to musical fidelity mxvyl phono section which has a grounding post next to rca ( 2 prong dc conv plug for power ) then Rca to my intergrated amp . which also has a grounding post for its onbaord phono section which i was using until now .the mxvynl is new..Thats why i was curious if i should go from mxvynl to intergrated ground ?or it would cause a loop..i am not going to do that and will just roll with a tt to phono ground as per info. Thanks |
The equipment ground is not involved. The Earth does not possess some magical, mystical, power. It does nothing for the SQ of an audio system. Same for the safety equipment ground. The purpose of the equipment ground, when used, is to provide a low resistive path for ground fault current to return to the source neutral conductor. |
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@jea48 is kind of mostly right. It's not a safety ground, so practically any gauge will do, but ...when it connects at the phonograph preamplifier's chassis I believe, which in turn should connect to the earth through the preamp's AC plug, when present. This is another reason why the safety ground on a preamp should never b e disabled. A lethal voltage could develop at the tonearm or fire created when that wire melts due to an AC short in the preamp otherwise. Of course, it's very very rare. Best, Erik |
It has nothing to do with Mother Earth or the safety equipment ground found at the mains wall receptacle. The ground you are connecting the TT ground wire to is the signal ground of the phono preamp. |
I have to have a ground on my vpi classic it buzzes like mad without it.I had it straight to my pre ground phone inboard.I am switching to the external phono,It has a ground terminal and a 2 prong dc conversion plug.My question is would it benefit me to go from it it to my pre ground also because the plug is not grounded ? The reason I asked may be a novice question,I remember when grounding large things to earth like a hottub a solid core wire is used it made me curious.Yes I use a 16 gauge stranded spaded wire now. With acoustic zen matrix reference 2 cables which made a huge! difference over the blue jeans( another thread entirely) night and day ... |
The looping issues are why the ground is optional. :) Listen and that will tell you. I agree either solid or stranded will work, 16 gauge should be more than enough. You may also want to try the really really cheap ferrite beads on either or both ends ($5 for a pack). May do nothing, but cheap. :) Erik |
