@cleeds Actually, I recall seeing noise measurements ethernet vs fiber somwhere, was cited by post on some thread here. My use of objective was directed towards near universal consensus of individuals hearing lower noise floor with fiber. I also alluded to possibility they may not hear this vs optimized ethernet.
My own experience points to variable outcomes. I tried fiber conversion prior to streamer, found it inferior to ethernet. Even greater benefit was derived from a JCAT net card XE in my ATX/Windows based motherboard custom steamer. Serves same purpose as Network Acoustics Muon.