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  2. The ferrite in the Z-chord would be my first guess - the filtering action imparted by it, plus how it's incorporated in the cable would be doing enough to disturb the behaviour of the power supply ... an interesting experiment would be to somehow remove that ferrite from the cable, with nothing else changed in the construction. Normal audio rigs are a precarious balance of all sorts of noise adding, interference elements - change one thing, and the balance is disturbed - perhaps to produce a sound that makes no sense, in terms of what was done.
  3. This is called "boron neutron capture therapy" (BNCT), and much of the research on it focuses on recurrent head & neck cancer. I'm a facial plastic & reconstructive surgeon in an NCI designated cancer center (retired after about 40 years of academic practice but still in active research as a tenured professor). So I have a tiny bit of familiarity with and understanding of some of the healthcare tangents introduced in this thread. The data based answer is: It hasn't proven sufficiently effective in clinical trials to justify routine clinical use. It's being modified with additional treatment modalities like pulsed ultrasound and epithermal neutron beam irradiation in attempts to improve cure & control rates without the severe toxicity seen to date. There are some isolated reports of complete responses of varied duration, but outcomes to date do not justify adoption because it hasn't yet improved care. The required radiation beam has to be generated by a very specialized, rare, expensive, dedicated nuclear reactor of which there were only a few in the world up to 2014. Since then, US and Japanese sources have made a few accelerator-based neutron sources - but outcomes data to date are simply not positive enough to justify investment beyond those required for research. The biggest problem at present seems to be the difficulty of developing optimal boron delivery agents. This is not for lack of trying, as evidenced by many published studies over the last 40+ years and the fact that there are still only two drugs for clinical use. Creating and improving these agents is a lot harder than it has been to date for chemotherapeutic agents. Boron delivery agents must persist in tumor cells long enough to be useful, while clearing from surrounding normal tissue fast enough to leave an ideal concentration gradient of between 3 and 4 to 1. Problems also include the need for development of methods to provide more accurate estimates of tumor boron content before treatment, improvements in clinical implementation of BNCT, and a clear need for randomized clinical trials with an unequivocal demonstration of therapeutic efficacy. Research is active in glioblastoma, head & neck cancer, and (as I recall) a few genital cancers. But this remains an early stage effort.
  4. Axial

    Windows 10 Worth It?

    How long till Microsoft stops supporting Windows 7 OS? * Windows 10, for me, is like a hurricane devastation repeating with every wind related to climate change; it gets worst every six months.
  5. John Dyson

    Lies about vinyl vs digital

    Even as an (honest) super technical person, I still understand that there are things about vinyl that people might like. It isn't my 'cup of tea', but each of us hears things differently. So, I understand preferring vinyl -- it would be wrong to claim 'vinyl sounds worse/better than digital' unless one is just talking about their own perception. There are valid claims about the differences, but how someone perceives a recording is a personal thing. There are all kinds of reasons why someone might prefer one over the other. I tend to limit disagreement to cases where advantages/disadvantages of either medium are incorrectly claimed. Sometimes, I do get emotional also, but I try do to be simply technical most of the time. I am glad that you like what you hear -- the goal is to enjoy whatever aspect of the hobby that you choose.
  6. Axial

    Lies about vinyl vs digital

    It is, the vinyl sounds beautiful. I just don't know how to explain the mechanics behind all that beauty versus the CD, beats me. Thank you.
  7. AMR/iFi audio

    Headphones vs Speakers.....Go!

    Here you'll finde some tech background on what we did: https://ifi-audio.com/tech-notes/ One person, the very same for some three years or so. At the office we have full AMR stack (two pairs of AMR LS-77 monitors) so that's constantly on and when I'm at home, I use Pro iDSD with Final D8000 planars or Hifimans HE1000v2 if either of these is available. We use them at various shows. That's pretty much it. Oh and at the office we have heavily modded vintage Garrard 301 which I adore.
  8. goon525

    Official Qobuz Issues Thread

    I don’t have a problem with gapless using Qobuz's Sublime+ - but I’m in the UK. Like you I listen mainly to classical. Usually I use the version of Qobuz integrated into my Linn streamer, but to be fair just recently I have been aware of a few mini-gaps using the iOS app. In general though, gapless was one of my reasons for preferring Qobuz to Tidal.
  9. What about this plugged direct into either Oppo or Marantz and some way to control it via smart phone apphttps://www.amazon.ca/AWOW-Computer-Stick-Windows-64-bit/dp/B073QL5NRG/ref=asc_df_B074KVYH5H/?tag=googleshopc0c-20&linkCode=df0&hvadid=292954324246&hvpos=1o1&hvnetw=g&hvrand=4513818582377289882&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9001172&hvtargid=pla-624228704127&th=1,? What about a wireless HDMI connection https://www.amazon.com/IOGEAR-Wireless-Digital-Channel-GW3DHDKIT/dp/B00630WKGI from PC to either Oppo or Marantz from the main PC and some way to control it via smart phone, same price for either? Purchasing another peice of equipment like Bluesound Node 2 leaves me wondering why with all the tech available and already onhand why do I require yet another pieie of gear? There must be a better way.
  10. Thank you for your comments Alan. I understand that you see the findings as a problem regarding the powersupplys. But my findings is the reasons for why I wrote the post in the beginning. In my system there is no doubt which power is the best. And this is something potential buyers deserves to know so they can test this themselves. The owner of the LPS power I tested is dissapointed with the result since he bought the power based on this thread. This could relate to the effort I have put into filtering and grounding on the AC supply, to the other electronics used, the Norwegian AC network beeing different built then most other countries. I do not know, and do not feel like putting more time in checking at this time. It is easyer for me to use the best sounding power. The point is that there is worth checking how these powersupplies sound in your own system. The NUC owner is the same as the LPS owner, and there is no disagreement between us which of the units that sounds the best. This NUC is a 4 core Pentium and I understand that the I7 NUC`s sound better? But I have only heard this one, and it is not as good, but a lot cheaper. I use feet under the boxes and this lifts the quality, but it also did so on the NUC. There was an improvement in sound whenEunhasu updated to 4.51 and this version was used last time. But we tested these to units against each other a few weeks ago with an older Eunhasu and the result was the same. If anyone in my corner of the world have a LPS power and whish to hear what I am describing they are welcome here. Cheers Terje
  11. Alert: None of what follows involves blind testing. A week or so ago I received new cables from Ghent Audio - one USB cable for $35, two RCA-to-XLR cables to connect my pre-amp and amp for $15 each (all one meter lengths). All were star quad, and the USB cable in addition has a "JSSG360" configuration. Then this week I received two 3 foot long power cords from Amazon. The idea for the USB cable was to change from a fairly heavy, stiff JSSG360 cable another member kindly made me that required an adapter (my DAC has an unusual USB A male input, necessitating a USB A female cable termination or adapter) with something lighter and less stiff that didn't need an adapter. The reason was to put less torque on the DAC's USB input, which I was concerned might lead to potential problems down the road. So I changed out the cable, and subjectively I liked it slightly better than the homemade one. I'd liked the homemade one better than the Mapleshade Clearlink Plus, a USB cable I'd preferred to anything else I'd heard for several years (including the two AQ cables at the top of their line). Very nice for $35. The idea with the two RCA-to-XLR cables was twofold: (1) See whether the star quad configuration might lead to less noise pickup than my very lightly shielded Omega Mikro interconnects; and (2) though I know just having an RCA-to-XLR cable won't provide any of the noise reduction advantages of a truly balanced setup, see whether there might be any audible difference between the RCA and XLR input circuitry in my amp (unlikely, I felt). The result was that I liked the sound with the new cables a fair amount better, at about 1/20th the price of the Omega Mikros if I remember what I paid for them correctly. Of course this could simply be expectation bias, random chance, whatever, but I continue to think the system sounds a bit better now. And finally, the new power cords, absolutely plain heavy duty power cords that came in a package of 3 for $6. The idea was to use two of these in place of MIT Z-cords (which are sturdily built and have ferrites), then insert the Z-cords in place of two Mapleshade power cords, one to the pre-amp power supply, the other to the amp. The Mapleshade cords have next to no shielding, so again the thought was better shielding and less noise pickup. Well, all did not turn out as I thought. The sound seemed a bit lifeless, "hi-fi" rather than "live," in subjective listening. So I switched the Z-cord plugged into the amp back out for one of the Mapleshade power cords, and all was bliss. The bite of violin bows on strings, the snap of percussion, the impression of fingers hitting keys on a piano rather than just notes being played, were back. (I don't have that much recent experience with live unamplified percussion, but for the past year I've had onstage seats for the local chamber music series, so I feel I'm somewhat familiar with piano and violin sounds.) I have no idea at all why the much more lightly constructed and unshielded Mapleshade should sound better to me subjectively, or indeed why power cords would make any difference at all other than potential noise pickup. Other than random chance or subconsciously wanting the Mapleshade to sound better though I consciously expected the Z-cord to be better, I have no explanation for my subjective impression. But anyway, I'm enjoying listening to music very much these days. And (obligatory non-audiophile spouse story) my wife has asked me who the artists were on a couple of albums she never liked before.
  12. bodiebill

    GentooPlayer

    oh of course... 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers (rev 07) Subsystem: Super Micro Computer Inc Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers Flags: bus master, fast devsel, latency 0, NUMA node 0 Capabilities: [e0] Vendor Specific Information: Len=10 <?> Kernel driver in use: skl_uncore 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06) (prog-if 00 [VGA controller]) Subsystem: Super Micro Computer Inc HD Graphics 530 Flags: bus master, fast devsel, latency 0, IRQ 16, NUMA node 0 Memory at de000000 (64-bit, non-prefetchable) Memory at c0000000 (64-bit, prefetchable) I/O ports at f000 [virtual] Expansion ROM at 000c0000 [disabled] Capabilities: [40] Vendor Specific Information: Len=0c <?> Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [ac] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Kernel driver in use: i915
  13. Superdad

    Opinion Rhapsody

    Fabulous!
  14. Hugo9000

    Official Qobuz Issues Thread

    I am using the Windows 64bit app, Qobuz Studio (US Beta trial), WASAPI exclusive mode set to output up to 24/192 in the app, and none of the classical albums I've tested so far have played gaplessly. I don't see a special setting for enabling gapless. Am I missing something in the setup or is this a known glitch in the app? Other than this issue, I really like Qobuz so far. I listen almost exclusively to classical music, and gapless playback is necessary for the bulk of what I like (it's essential for opera, for example).
  15. Back to audio. Here is a worthy soundtrack and montage at the level of Akira Kurosawa:
  16. Hello, I don't have a problem with any posters that describe their own listening experiences. The nice thing about this thread is that no one is forcing anyone to do anything. If your findings are contrary to what the majority are finding, that does not make you wrong, per se. Different people hear differently, and value aspects of the experience differently. That's all cool. The problem arises when it comes to credibility and motives. Most readers are intelligent and discerning enough to weigh all factors when evaluating a poster's findings and recommendations. Is the person a newbie to the forum? Or do they have a history of posting findings that others have found helpful? Does the poster have a commercial affiliation in the audio trade? This last one is the stumbling block for dealers, distributors, resellers, and manufacturers. I accept that many, if not all, who fall into this category are also audiophiles. And many are used to giving customers (or potential customers) frank and honest advice. But what works in an in-person interaction does not translate well onto an internet forum. As @The Computer Audiophile mentioned, many, many trade insiders have tried to walk the fine line on this forum between their own vested interest and what they consider as unbiased advice. Most have failed. I think you should just accept that as a dealer, you cannot escape the reality that whenever you talk about a product you sell or promote, you will be viewed as biased. That's life. You may want to study the exceptions to the norm - people like @Superdad, @PeterSt - who manage to navigate the forums while declaring their industry affiliation. The trick is to provide expertise on the products with which you are affiliated, and avoid bad mouthing your competitors. Only then do you stand a chance of being heard. And btw - even then it's incredibly hard.
  17. The actor is that is Donnie Yen, who originally trained in other martial arts. I hear his mother is trained in Wing Chun. I will say that Wing Chun requires very precise angles to "work."
  18. christopher3393

    Best RCA Cables

    I was disagreeing with the bolded sentence.
  19. frederick184

    New HDPLEX 200W LPS

    200W HDPlex sold out in US until end of Feb. Colin
  20. JDoyle

    Article: Audiophile 5: Roon 1.6 in 5 Minutes

    Okay, thanks Don, that’s what I needed to hear. 👍 JD
  21. Ralf11

    Best RCA Cables

    It doesn't run when the stereo is on. BTW, the thing is well worth $50.
  22. antonellocaroli

    GentooPlayer

    I was actually more interested in the video part ...
  23. You haven't convinced me - MMA guys beat Wing Chun fighters using just one hand (second half of the video) But I admit wing chun works if you're a cat fighting with a chicken
  24. LTG2010

    New HDPLEX 200W LPS

    Yes that's correct, if you use metal screws without washers to connect the board to the chassis the screw holes are ground points, in effect the case becomes 'ground', you can check for continuity with a meter. Connecting to your earth rod from any ground point on the PC, or on the case will 'ground' the entire PC including power supplies attached. I can hear a definite reduction in noise when I connect this way, but only when using pretty thick earth/ copper cable (from PC to ground block) - lowest impedance seems best. Looking forward to hearing about the results.
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