If the switch provides galvanic and noise isolation, how much EMI/RFI is likely to ride on a 1M length of shielded Ethernet cable between the switch and a DAC?
@mitch2, Hi Mitch I do not know exactly just how much noise will be passed on to the next stage, just that it is and it is easily audible. To answer another of your questions: Have you heard these differences by comparing a short length of shielded vs. non shielded cable from switch to DAC? Yes indeed and as I have mentioned try and keep the cable length to 2ft. or less (0.5 to 0.6m)
From my posts above whether the switch is an inexpensive or audiophile unit the reduction in noise is unmistakeable. All the benefits of lowering the noise floor are evident. I have no experience with isolating filters like the Muon Pro. I'm not pretending to be an expert on this but I do understand that any noise contained by the switch will, if connected by a shielded cable, defeat the purpose of said switch. Fortunately this conductive path can be broken by using a short unshielded cable from switch to streamer or streamer/DAC.
There is much on this topic to be found on the forum 'audiophilestyle'



