Audio over Ethernet Baluns

[JK200SX]

I know these devices aren't that expensive to buy, eg:





but I need to get my hands on a set of these tomorrow morning, so ordering over the internet is not an option.

Does anyone know of any sellers in the northern suburbs of Melbourne?

Conversely, I'd be quite capable of building a set of these, but don't know if they are straight through connections to the cat cable? Does anyone have a wiring diagram to put these together? I already have RJ45 jacks, rca jacks etc, and am handy with a soldering iron. The cat5e run is ~10m.

Any suggestions?

[Reschs]

Altronics or Jaycar.

[JK200SX]

Altronics is a bit to far, and the local Jaycar doesn't have them in stock (should've mentioned that before I posted) - anyone with a circuit?

[Reschs]

The passive ones have a 600 to 600 ohm transformer on the send side and 10K to 600 transformer on the receive side.