The ethernet cable that is plugged into the Bridge II goes into a TP-Link CM110CS. A fiberoptic cable (of essentially any length you need) goes to another TP-Link CM110CS. A reasonably short, good quality ethernet cable then goes into the Bridge II. This will get you better sound. It would be ideal if the power supply for the upstream Media Converter was on a different circuit than your sound system.
The power supply of the downstream Media Converter is important. An inexpensive 9v battery adapter will give you another step up in SQ, though a single 9v battery doesn’t last long. The downstream Media Converter and power supply are the first things to spend extra money on for further improvements. There are battery power supplies (with lots of batteries that last a while) and linear power supplies. There is also something coming out called an EtherRegen that is built for very low noise and would take the place of the downstream Media Converter.
Have Fun!