But if you A/B back and forth after seconds or minutes, especially if you A/B/A/B/A/B in one session, it's often very hard to tell the differenceThat's the point, if there is a difference it will be apparent.
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@djones51 no, the point is that it won't be apparent unless you are already familiar with the baseline sound. This IMO is the basis for all the pitchfork carrying anti cable people saying no one can pass an A/B test because of course you can't tell the difference in an unfamiliar system after listening to two 30 second snippets. In a system you've been listening to for months, yes you can hear the difference when something changes. When "A" is well known, the difference with "B" is noticable. At least that's how my ears work. That's why I brought up the fact that I'd been listening to the ER now for over 2 months.
Good to read this morning, I have an etherRegen being delivered via FedEx today - looking forward to connecting to my Naim Uniti Nova and Innuos Zen MK III to see what if any gains it offers. I'm tempering expectations and expecting something along the lines of swapping out a higher end power cable.
I got my ER in the first batch last year and noticed an immediate improvement in all aspects of sound right out of the box in my Roon Nucleus+ based system. Since then, I have enhanced its performance in stages first by adding an Sbooster linear power supply, then by going optical from the router to the ER with a cheap 10GTek optical converter powered by an HDPlex LPS, then finally by replacing the 10Gtek converter with a Sonore optical module. To me, the improvements were worthwhile every step along the way.
I'll echo the comments here by other ER owners. This is for me, the best $640 I've spent in audio. I've been through several Network cables (Cable Matters 8 and Supra 8+ and Monoprice 5e) and they certainly make a difference as well, though not on the level of the ER itself. I'm going to buy a Paul Hynes SR4T next and that'll probably do it. I'd suggest that anyone that is streaming should give the ER a try. You will be pleasantly surprised.
BTW, I had read from a few users, and I believe Alex over at Uptone, that having the ER as close to the source as possible was the best place for it. I can say that I had it 20+' away for months and then moved it to my audio rack and after it settled for a day or two it was a significant and free upgrade. FYI - I also liked the Supra 8+ best as it seems to be the most life like in presentation.
Agree with improvement with etheregen and fiber optic cable.
My set up is Router: ethernet cable >> Ubiquiti Unifi: fiber optic >> ubiquity unifi: ethernet cable >> etheregen: ethernet cable >> Server/streamer (Antipodes CCX/S30): USB cable >> Uptone iso-regen: USB cable >> DAC. It gets better with every step. I like the improvement seen and will not go back.
I think he means (and correctly uses later) "PoE", which is Power Over Ethernet. Basically, you can power a low power device over your ethernet connection from your switch or via a PoE "injector".
One common use-case is for security cameras where you can just run CAT-5 or CAT-6 and power the camera over that line. Requires a switch that can do it, or a small device that adds the power. I use PoE to power multiple access points for my WiFi for example, and my Ring doorbell.