On Sun, 21 Jun 2009 12:17:15 +0100, David Pitt
wrote:

Are either Paul Messenger or Ben Duncan trustworthy sources?

I believe it was Ben Duncan, years ago, who attempted to show that
speaker cables changed their delay characteristics with current. He
set up an experiment to demonstrate this, measuring frequency response
and delay with different currents - they did indeed change.
Unfortunately, the way he changed the current was by changing the load
on the end of the cable. It was of course this that changed the
measured delay - perfectly in line with established theory.

So no, Ben Duncan is not a reliable or trustworthy source.

d