[XTTX]

This is my first DIY attempt at anything audio. So, I'm planning on replacing my broken cables for my UE TF10's with some custom cables, but I was wondering what wire would be best for my uses with regard to the following aspects:

1. Conductor (copper vs silver, etc.)
2. Insulation (what material / do I need multiple layers)
3. Gauge
 
In terms of putting the wire together, should I braid it? What are some of the better techniques for making the cable?
 
Also, as a slight aside, does anyone know where to find the 2-pin connector that plugs into the IEMs? It appears that the pins are 0.7 mm in diameter, and I've read that D-Sub pins/ VGA pins are acceptable substitutes (I'd really like to find a proper source though).
 

 

[limpidglitch]

Take one pair of cheap earbuds. 
Cut of the wire directly below the driver capsule.
Strip and solder to a pair of connectors.
 
Easy, no need to re-invent the wheel.

 

[gimble]

I think you can actually get "replacement" IEM cables from Sennheiser for about the same price as cheap earbuds, except you get a cable intended for their higher-end models which is nice and flexible and has been coated to nuke microphonics.
 
If you try this, do let me know how it works out...

 

[limpidglitch]

Or from UE themselves.
Probably the easiest solution of all, if you can spare $20.

 

[XTTX]

Well, I also just wanted to try making my own cables for the learning experience.

 

[gimble]

There's more of a learning experience to be had from other types of interconnects. IEMs have specialized problems.

 

[limpidglitch]

Making IEM cables from scratch is far from the easiest way to gain cable making experience. They will have to be both very light, flexible and un-microphonic, this is not an easy task.
 
Making normal headphone cables is a much more forgiving exercise, and making interconnects even more so.