No Nick, it's not a power plug Ethernet it's a standard cat 5 wiring throgh the house with cat 6 terminations .
I agree with you the power plug variety could induce some abberations.
Regards
Huw

#1 52KSE 218 LG OLED Sony BRay, Sonos Beam 2
#2 52KSE 218 Pana LED Zenith 2 Naim Muso2
#3 Teac X1 CD, G68, 562v3 518 568 556 G98DH 5K,5KHC 24/96,MS600,Systemdek I920, Ortofon M520, Synthèse Floating 2 Thorens TD160 Ortofon M15e Pioneer DAT Panny Plasma,Humax,BRay.
#4 Panasonic 4K LED Sonos Beam 2
#5 F80 MS200 iDock Sonos Move
#6 MS200 5K 24/96