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Puma Cat

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  1. Great post. I'll just add some additional info for context here. In the medical imaging arena, where the products of Shunyata Research's sister company, Clear Image Scientific, have developed a range of products that have been a breakthrough in digital medical imaging, the doctors who use these products don't get into "arguments" about whether a power can make a difference, because....they use these products to save people's lives.
  2. Excelllent post. As someone who spent his entire career as a professional scientist, and am first-author of papers published in Science, The Proceedings of the National Academy of the Sciences, American Journal of Human Genetics, Blood, etc., I agree with your points. Oh, and BTW, the Principia Mathematica was not peer-reviewed.
  3. There are some fundamental points here that I'd like raise, but just once, for folks to think about and consider, but I won't really get into deep discussions about these points, as things will stray off topic. But I'm putting them forward just to level set. The basic premise is that there are many things in this "universe" and in the experiences of our lives that we know to be TRUE and REAL that reductionist science cannot explain, either with "measurements" or even at a deeper fundamental level. And because reductionist science cannot explain them, they are...ignored. Gravity: Physicists have no explanation for Gravity. Yes, it can be characterized by Newton's famous equation, F=GMm/r2 that mathematically describes the force of gravity between two masses, but no physicist can explain WHY two masses are attracted to each to eather through a gravitational field. In fact, physicists cannot actually tell you what a field is and how it is mediated through "nothingness". This is an extension of another thing they can't explain, what is known in quantum physics as "the hard problem". Gravitational Constant: Furthermore, physicists can't explain why the gravitational constant, G, changes over time, and varies. Guess what? If the gravitational constant is a constant, why does it change over time? Speed of Light: the speed of light has changed over time as well. If you look at measurements in the historical record, it is documented that the measured speed of slight dropped between 1930 and 1945. If the speed of light is a constant, why does it change over time? Magnetism: nobody knows how a magnet can move a piece of metal without touching it. And for another thing is, nobody seems to care. When Richard Feynman was asked why by an interviewer: "If you hold two magnets with the same poles close, you'll feel a force pushing them away, and if they have opposite poles, they will snap together. "What I want to know is, what's going on between these two bits of metal?", he could not provide an answer. Because he didn't know more than anyone else does. Some physicicsts use "virtual photons" to explain magnetism, but "virtual photons" don't actually exist, they are simply mathematical fudge factors that theoretical physicists use to try to balance their equations. Dogs (and many cats) Wait for Their Owners to Come Home: Millions of dog and cat owners have experienced that their dogs, and to a lesser degree cats, are always waiting for them to come home. It turns out they are waiting for them before the owner actually arrives at home. This is independent of the mode of transport of the owner (on foot or with mechanized tranportation and independant of time of day, schedule, etc.) This phenomenon has been documented using professional video camera crews with time-synchronized cam-corders at the location of the dog and independently and simultaneously at the location of the owner, who is away from home, with statistical signficance. Science has NO answer for this well-known and well-characterized experience. The Sensation of Being Stared At: The sensation of being stared at is an experience that virtually all of us have had, or experienced from staring at someone who is not looking at them (a simple experiment: when you are driving down the freeway, turn and look at a driver in a car alongside you that is not looking at you, and measure how often, when you look at them, they will turn their head and look back at you). A simple experiment for this phenomenon has been conducted in studies world-wide and have been shown to be real with a p-value that provides statistical significance. As of 2005, there had already been 30,803 trials at multiple labs and locations of subjects being stared at with 16,849 correct observations, producing a p-value of 1X10^-20 (thus, the probability of obtaining these results by chance are significantly less than 1 in ten billion) Ref: J. Conciousness Studies 12: 10-31 (2005). The Collapse of the Wave Function in a Double-Slit Experiment. The collapse of the wave function (interference pattern) of light in a double-slit experiment when viewed by a Conscious Observer is a well-characterized phenomenon. This phenomenon is held even when the conscious observer is viewing remotely by video display; it does NOT occur when the observing is done by a computer. Dean Radin has conducted an outstanding set of experiments producing the same p-values that won the Nobel Prize for the discovery of the Higgs Boson. Physicists and "Science" have no answer for this phenomenon. YouTube Video here: https://youtu.be/nRSBaq3vAeY The excellent white paper that John has written provides the foundation for understanding how a new class of noise factors e.g. the different jitter classes, the impact of leakage currents and clock phase noise and their interactions impact the reproduction of digital music. Impacts it in a way we hear and know to be true in an audible manner. I'm confident as we learn more about digital music reproduction, we will discover and characterize more of these factors. Regardless, though, there are many phenomena that I've described above that are known and documented to be true that quite simply, reductionist science cannot explain. Simple stuff, you know, like Gravity and Magnetism. But we DO know these phenomena to be true. The fact we can't explain or measure them does NOT make them any less true. The same applies to what we can hear, and the interaction of our audio equipment, our brains, minds, and what we know we can hear when listening to music.
  4. Yep, it really makes a difference. A difference that is audible. Back in 2016 when Chris was accurately espousing the virtues of the Sonore microRendu, as soon as I got one and placed my Mac Mini in the bedroom/study 40 feet away, the audible benefits are clear. If you can run fiber, this will make moving your Innuous that much easier and more feasible.
  5. I do, and my system sounds exceptional. Lots of people use Intel NUCs as music servers for streaming very effectively. All an Innuous does is put a lot of high-bandwidth noise from its CPU into other components in the audio rack. Moreover, this high-bandwidth noise from these CPUs is picked up by unshielded speaker cables, which acts an antennas for high-bandwidth noise and is fed backwards into the power amp, only to be re-amplified as noise. The best thing you can with respect to any music server is to locate it as far away from the audio rack as possible. Mine is 40 feet away from the audio rack, I run fiber from it to the network bridge.
  6. Hi Rajev, My articles will be in the May/June issues of TAS. One on the Gold Note PH-10 and one on streaming using optical fiber. Thanks for the information on the optical transceivers.
  7. Really a superb review, Rajiv, thank you. I completed a review for The Absolute Sound in January that was notably shorter, so I know just how much work writing a review as comprehensive as this actually is from first-hand experience. Just a question for you: where did you get the Startech SFP1000ZXST 1550nm/80km transceiver and where you get the 10 dB attenuators, and how do you use them in conjunction with the optical transceivers? Thanks again for a great review. -Stephen
  8. Congrats to John and Alex for publishing this White Paper. I know that it was a lot of hard work and effort. Its very informative and reads well, so well done. 👍
  9. Hey Gang, In case you haven't seen it, Hans Beekhuzen has a superb video on "The Sound of Network Switches". This video does the best job, by far, that I've seen to date on why we can hear differences in Ethernet switches. Highly recommended viewing: https://youtu.be/BbRF8z8dQFU
  10. Any more news on the white paper? I would love to be able to use it as a reference when requested, when I recommend the ER and its innovative design and features in other audio forums.
  11. Alex and John at Uptone Audio are to be congratulated for their groundbreaking EtherREGEN and the excellent review at Hans Beekhuzen's YouTube channel. Hans says it like it is, and has considerable credibility in the audiophile community. Well done, guys!
  12. Hi John and Alex, Any word on this (hopefully forthcoming) white paper? Its been two months now since this was posted. Personally, this white paper would be an excellent reference for me to show to friends and fellow audiophiles about the John's discoveries of the role of high-impedance leakage currents on clock phase noise, and the benefits that ER brings in addressing this. Cheers and thanks!
  13. Hi Gang, Sorry I've been away since my last post...I've been VERY busy my first articles for The Absolute Sound. Just wanted to update my previous post about the ER: I've now obtained a 10Gtek 850nM optical transceiver, the one that Alex and Uptone Audio recommends. It worked upon first install and has been functioning perfectly since. No dropouts, and to date, no issues with it the optical transceiver disconnecting from barely touching or moving the ER. So far, so good, and I'll update my observations and final thoughts with time as I use this new optical transceiver. Cheers, gang.
  14. Consistent product robustness problems with the the SFP Cage and Optical Transceiver on the EtherREGEN: Since I received my ER back in October, I've experienced consistent problems with the SFP cage and optical transceiver on EtherREGEN. I am using the Sonore SystemOptique-certified 850 nM optical transceiver (purchased from Sonore) in the ER's SFP cage. My experience is that even if barely move, or in some cases, even touch the ER or the Tripp-Lite OM-1 specification optical cable that is plugged into the OT, the OT almost always disconnects in the SFP cage, and then I usually spend a considerable period of time trying to get the digital audio steam from my server to connect. Today, after placing my digital streaming front end a nice maple board, I just spent >90 minutes trying to get ER to connect up. To say it was exasperating was putting it mildly, I was just about to give up and spend the afternoon listening to LPs when it "connected" again and I could stream my files to my SOtM SMS-200 UltraNeo. 🙀 Back when was I was working as Design for Six Sigma (DFSS) Master Black Belt, teaching product development principles to scientists and engineers for one of the leading biotech companies in the world, there was a key quality attribute that I spent a lot of time drilling home: the concept of a ROBUST product or system-level ROBUSTNESS. A "ROBUST" product is defined as: "Function performs on-target with minimal variation in the presence of NOISE factors." The noise factor here is the optical transceiver module, and presently, the SFP cage/OT interface of ER is not robust to the optical transceiver utilized. ER should work in a statistically robust manner with any industry-standard specification 850nM, 1000-Base SM MMX fiber optical transceiver, and in my experience, with the number of times that I (and for reference, a good friend that has also an ER) have had the problems described above, this is not the case. I know folks will chime in, here..."Oh, don't use that optical transceiver, use this OT, instead." Look, gang, I get it, and I'll have to do that, I guess, in order to have a consistent and less exasperating customer experience. But, so that I am maximally clear here: that is not the point of this post. The truth of the world is this: There are NO, and I mean, NO perfect manufacturing processes or perfect products, from any manufacturer in any industry. None. They do not exist. The Japense have a very specific term for their philosophy about designing and manufacturing products: KAIZEN (Change for the Better, ref here: https://en.wikipedia.org/wiki/Kaizen) The key point about kaizen is to work with humility and open-ness with a spirit of "continuous improvment" so that overall product quality increases continually over time. When product quality improves, the customer's ability to use the product and their experience improves, and society as a whole improves, too. Understanding this key principle with humility rather than indignation is the basis for one of the highest quality manufacturing systems the the world, The Toyota Production System (reference: The Toyota Way by James Likert). This post was written in the spirit of kaizen with respect to helping Uptone Audio developing what is truly an excellent product into an higher-quality one, specifically with respect to product robustness. One that will realize its full and considerable potential all the while providing 1) a function performs on-target with minimal variation in the presence of noise factors and 2) a satisfactory customer experience. Right now, its not doing that. Improving ER's "robustness quality attributes" will not only improve the customer experience, it will also lower service, support, repair, and warranty costs, a lower COPQ (Cost of Poor Quality), and result in greater profitability for Uptone Audio. And that's a good thing; I sincerely want Uptone Audio to be maximally profitable and successful as they bring a great deal of innovation and value to the audio industry. And, they're really nice guys, too. Alex, happy to work with you and Uptone Audio as a professional DFSS resource regarding the SFP/OT robustness quality attribute in any way I can. Feel free to reach out. all my best, Stephen
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