Well, after an evening of experimentation, the biggest culprits were the two Blue Jeans Ethernet cables; they completely mess up the highs, which have a very strident, edgy and thin sound that is most uncomfortable. It comes across to me to some degree as a form of ringing so it may also be something llike a 7th or 9th, etc. odd-order harmonic. The TP-Link Ethernet switch also seems to add some of the same type of wonkiness to the highs, but not to the same degree. This could well be due to the cr*p linear power supply that powers the Ethernet switch.
At this point, the base setup, with the generic Ethernet cables I was using, plugged into the Ethernet ports of the Pace router, sounds the best. Outstanding, actually.
I'll likely get an ifI iPower LPS for the Ethernet switch and see if that improves using the switch.
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components.
Last edited by Puma Cat; 04-06-2019 at 03:33 AM.
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