EtherREGEN Review up at Hans Beekhuzen

[Puma Cat]

Hans has a very favorable review of the Uptone Audio EtherREGEN at his YouTube channel: https://youtu.be/Io4SDi5hLxs

Hans does a particularly good job of explaining the board design, the ADIM (isolation moat) and the separation between the two zones that prevent the passage of low- and high-impedance leakage currents from one side getting to the other (this is important with respect to sound quality).

His comments and summary are right on the money. The only thing I would add is that I note a larger improvement in audio quality using optical fiber than Hans says he obtains. I attribute this to differences in systems and system-level noise in different customer use-cases. I live right next to some big power line transmission towers, so that may play a role.

[2fastdriving]

Originally Posted by Puma Cat

Hans has a very favorable review of the Uptone Audio EtherREGEN at his YouTube channel: https://youtu.be/Io4SDi5hLxs

Hans does a particularly good job of explaining the board design, the ADIM (isolation moat) and the separation between the two zones that prevent the passage of low- and high-impedance leakage currents from one side getting to the other (this is important with respect to sound quality).

His comments and summary are right on the money. The only thing I would add is that I note a larger improvement in audio quality using optical fiber than Hans says he obtains. I attribute this to differences in systems and system-level noise in different customer use-cases. I live right next to some big power line transmission towers, so that may play a role.

I use wifi

I'm an "ethernet denier"

[Puma Cat]

Originally Posted by 2fastdriving

I use wifi

I'm an "ethernet denier"

LOL...

Whatever "floats your boat", my friend!

[antipop]

I saw that review but I also read that a fully upgraded SOtM switch has better SQ than the Etherregen contrary to his conclusion. It’s not exactly the same as the SOtM would significantly more expensive

I’m quite lost as to what to do in my system.

[SL1800]

Originally Posted by antipop

I saw that review but I also read that a fully upgraded SOtM switch has better SQ than the Etherregen contrary to his conclusion. It’s not exactly the same as the SOtM would significantly more expensive

I’m quite lost as to what to do in my system.

I just received my SOTM switch with upgraded internal clock. I will report back in a few days if it helps any over my cheap Netgear switch.

[clpetersen]

Originally Posted by antipop

I saw that review but I also read that a fully upgraded SOtM switch has better SQ than the Etherregen contrary to his conclusion. It’s not exactly the same as the SOtM would significantly more expensive

I’m quite lost as to what to do in my system.

Hello Antipop - difficult questions. Ethernet, as a transmission protocol, is far removed from the actual conversion of digital signals to analog audio.

Below is another review of the Ether-Regen. After reading through this review you may gain a better understanding of how this all works.


https://www.audiosciencereview.com/f...-review.10232/

[Puma Cat]

Originally Posted by clpetersen

Hello Antipop - difficult questions. Ethernet, as a transmission protocol, is far removed from the actual conversion of digital signals to analog audio.

Below is another review of the Ether-Regen. After reading through this review you may gain a better understanding of how this all works.


https://www.audiosciencereview.com/f...-review.10232/

Oh, goodness, not those guys. Don't get me started with them...

[Puma Cat]

Originally Posted by antipop

I saw that review but I also read that a fully upgraded SOtM switch has better SQ than the Etherregen contrary to his conclusion. It’s not exactly the same as the SOtM would significantly more expensive

I’m quite lost as to what to do in my system.

Easy. Get the EtherREGEN...its cheaper. And, sounds better because it manages high-impedance leakage currents which induce clock phase noise much better. Plus...there's a 30-day no questions asked return policy. If you don't like it, you can return if for a full refund. Tough to go wrong there.

[antipop]

Originally Posted by Puma Cat

Oh, goodness, not those guys. Don't get me started with them...

Why?

[Puma Cat]

Originally Posted by antipop

Why?

Hi Georges,

Well, because they claim their approach is "scientific", when from the perspective of someone who spent 40 years as a professional scientist, they are anything but scientific. Why? Here are a just a few reasons:

1) Before the EtherREGEN even launched, or could be listened to, and/or tested by anyone they were trashing it by unequivocally stating it could not possibly improve sound quality, indicating that they were biased and un-objective. A real scientist does not bias themselves before conducting an experiment; they make conclusions from facts and data AND, and this is important part, put into the correct context by the appropriate statistical analysis of the data. A scientist designs a proper experiment to be as free from any sources of bias as possible.

2) They do virtually no, and I mean no, statistical analysis: they don't state or provide what the appropriate statistical analysis method would be for the evaluation (would be it a proportions test, a two-tailed T-test or ANOVA? who knows, 'cause they don't say). Furthermore, regarding the a "statistical foundation" (if you could call it that) for their test methodology's, they don't state, with statistical rigor what "differences" they are trying to detect are practically significant, let alone not stating from their "analysis" what is statistically significant. Ever see a p-value or R^2 and R^2 Adj. from a regression analysis from them. No? Funny, I never have either.

2) They have never conducted a statistically valid Measurements System Analysis (MSA) for their test methodology. They don't conduct the correct foundational analysis to determine 1) their smallest effective measurement increment, 2) the % Contribution that their measurement system contributes to the overall Study variance, that is, the sums of squares of the MS system divided by the sums of squares of the Study to report an F-statistic (all data sets contain noise, some contain signals), nor do they report the Operator*Part interaction, or nor the Within Operator*Operator repeatibility statistics nor the between Operator*Operator reproducibility statistics. Bottom-line: My guess is they wouldn't know an MSA if it smacked them upside the head.

3) They conduct their "analysis" with a sample set of an N=1 on one unit. No scientist in their right mind makes a "scientific conclusion" based on sample set of 1, run 1 time. This is not science.

4) One of the key differentiators of the EtherREGEN is the fact that it does not pass high-impedance AC leakage currents onto the ground plane of the analog square wave voltages that actually comprise a "digital signals' (no 1s and 0s are transmitted). They don't test for the degree of high-impedance AC leakage currents because they don't have the bespoke test equipment that is reqired to do so, nor would they know how to actually build the equipment if they wanted to test for high-impedance leakage currents.

5) They provide no statistical foundation and correlation (R^2 and R^2 Adj.) for the impact of high-impedance leakage currents on clock phase noise. In fact, they don't measure clock phase noise at all.

I could go on, but those are just 5 reasons for starters.

Cheers.