"Matt Distefano" wrote ...
I'm just starting my first somewhat major electronics
project, building a pair of amplifiers up from a Rod Elliott
(http://sound.au.com) design, using a PCB supplied by
the same. I'll also be constructing a simple passive
volume control (just a pot in a box, basically) to place
between these amps and my CD source.

So I'm wondering about the internal wiring for these units.
Specifically, shielding of the wire.

Did you mention what you were using for case(s)?
If it is metalic/conductive then it is quite likely that
you don't need to shield the input wire. Of course
the power and output wires do not need shielding.

You could just wire it with regular "hookup" wire and
see how you like it. Simple enough to replace with
a short piece of shielded wire if it "hums", etc.