"Colin Bigam" wrote in message


So what is the problem with connecting the shield at both ends of the
cable then? Is it the possibility of inducing a current in the shield
that's not present in the ground, or...?

You have an instant groud-loop the length of the cable !

Well much of my planning is based on a pair of articles by Jim
Heyward in Audio Ideas Guide. He pointed out that with a badly
designed preamp (specifically he talks about one where the output
feed is taken directly from the wiper of a 250kohm volume pot,

A better approach would be to not use badly-designed preamps.

geoff