![]() My LAN is having 3 switches and CAT7 cabling in-wall, about 20 devices connected at time. ![]() So there are at least 2 different things - one is related to electrical (and EMI/RFI) properties of whole audio chain, including also ethernet and the other one is ability of streamer to suppress network activity impact on SQ. I would dare to say I would be able to ABX them without big issue. Now, for the non-RAM based playback (RoonBridge) - whatever i tried it is always noticeably different (worse) than RAM playback - even with very cautious CPU-pinning setup, to minimize jitter on CPU managing audio USB interface. Playing from RAM with ethernet plugged directly into main ethernet switch (circumventing optical isolation) immediately and very noticeably degrades SQ. (i would not be able to distinguish in A/B test) Playing from RAM, with ethernet unplugged is only a smidge better than Playing from RAM and having ethernet connected (EtherRegen + Optical isolation). via mpd with playback from RAM with only NW traffic being status info about playback position etc.via mpd with - which makes semi-continuous NW traffic.either thru RoonBridge - which makes continuous NW traffic. ![]() There are actually 3 different ways I can listen:
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