"TonyL" wrote in message
...

Folks, I seem to be having problems communicating what I'm trying to do.
Here's the requirements:

I have a single audio conductor (+ground), length from 6 feet upwards.

A variable number of inputs are to be fed *to* the conductor at different
points along its length.

A variable number of outputs are to be taken *from* the conductor at
different points along it's length.

Ah!, you are trying to use the same conductor as an input mixing bus *and*
as an output distribution bus at the same time, you didn't make that clear.
In that case you can't use the virtual-ground method.

Level changes on the outputs to be zero, or small, as inputs/outputs
added/removed.

How would you do it ?

I'd forget about using the same conductor for both purposes. Have a
virtual-ground input mixing bus and a separate output bus.

David.