Panomaniac- Your exactly right, by saying Im just having fun making something and listening to it. It's something I haven't done, and thought I'd give it a try.
454Casull- Yes capacitance crossed my mind, but as stated I am not putting huge money and time into this and if it doesnt work, then I can at least say its something I have done. I did think that having two layers of foil would create a bit more capacitance then normal, that could lead to potential treble loss. But, I chose to incorporate foil, because most conductors exhibit an effect called the skin effect.
Basically, the higher the frequency, the electrons only flow closer to the surface of the conductor and not through the centre, with this 'skin' becoming thinner with frequency increase. Granted though 20 KHz, the top limit of human hearing, the skin effect is still negligible. But, that is my reason for incorporating foil into the design, and if that has any effect it will help to work against any unwanted capacitance. And if it does have slightly increased capacitance, then it will have a lower inductance, and given the reason mentioned earlier, this should hopefully make it more neutral throughout the entire frequency range.
infinia- I spent a good deal of time finding the right foil, finally found a half used roll in the back of the pantry so that should be good enough.
I have uploaded an annotated photo, taken at two points during construction, for those interested. The below link is to a photo of the completed cables, but without the final layer of insulation and plugs. To get the braiding I stripped an old mic lead and removed the braiding by bunching it up, then put it on my cables and stretched it out again. The little black bits seen through the braiding are just small tabs of insulation tape to hold the foil wrap together.
http://i423.photobucket.com/albums/p...g?t=1246974622
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