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shield to pin one of xlr

I have an einstein phonostage with only XLR inputs. I am constructing a tonearm cable. Most schematics (ayre, boulder, aquavox) recommend connecting the shield to pin one. Some schematics recommended just leaving pin 1 not connected. The shield is either not connected or connected to ground on the phono stage.

What is the advantage connecting the shield to pin 1? I would assume that it is related to how the phonostage handle the pin 1 connection.

Thanks
glai

Showing 1 response by ths364

ths364
181 posts
 
I'm not familiar with the Einstein phonostage but generally speaking, connect the shield on the source end and leave it disconnected on the other end. This means that any interference picked up by the shield never reaches the amplifier. You are also less likely to create a ground loop.
You can always test it by running a single wire from the turntable to the phonostage ground afterward to see if it's quieter that way.
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