Synergistic Research has one of the best Ethernet hubs and cables. Good independent reviews online. Can buy used around 2K. If you are streaming a lot and have a good system, it is well worth it.
Network Switches
Another digital question from an analogue guy.
I am currently running an Electrocompanient EDM MKII ( Streamer DAC) and a Small Green Computer Sonic transporter. Both run off of a Trendnet ( unmanaged) basic switch.
Would an upgraded switch have any sonic impact?
If so what switches in the 500 dollar range would be recommended?