For Ethernet cable I’m using Supra Cat8 which was a really nice upgrade from a generic cat 5.
My Lumin streamer and Benchmark DAC3 HGC are connected using Audience AU24se+ USB cable (upgraded by Audience to StudioOne). I agree I can do better than Supra Cat8 but the USB cable I’m using is very good.
The power supply induced noise with the fiber optic converters makes sense and is a candidate to be eliminated. However even despite that noise the converters brought a nice improvement.
That’s why I think the Network Acoustics Eno passive filter makes sense and that’s what I’m going to try. Possibly with a decent network switch between it and the EERO.
Trying to get the streaming as close to physical media as possible is a challenge but there’s no way around it, it has to be done to get the most out of streaming that much is clear now.