177466-165892 What difference do power cables make? By the design of all modern audio equipment, your cables should not affect your signal assuming you have the proper connectors, gauge, etc. "Shielding can be a two-edged sword. If I could post pictures I would post pictures. The only cases where a high quality cord does not have significant effects is when it is used with a poor quality power conditioner that acts as a high impedance to instantaneous current flow. But like washing water with other water. There is just hard work, occasional inspiration and lots of testing.. As I said I hold no a priori belief that AC cables can not make a sonic difference. But it's entirely sensible to recognize the variables involved, in trying to tease out reliable conclusions. The same exact poll was posted with the same exact samples, and things got a little wonky with a different audience. Please point me to a published test of an amplification or source component's noise floor where: 1. Answer: Most of the EMI that affects the audio quality of a system is generated by the audio components themselves. As an Amazon Associate we may earn from qualifying purchases. If they have identified measurable phenomena, claim to have fixed the problemit's obvious the results *should be measurable*. Misconception #3: There is up to a hundred feet of wire in the walls, so the last 6 feet of power cord can't possibly make any difference. If you need a cable like this, it means that the engineers who designed your products were not worthy of the title.". It's why science goes to great pains to reduce those variables. Full disclosure: I *do* have a connection to Shunyata. Electrons cannot be contaminated. (By the way, conventional definitions of the word skepticism do not imply having an open mind going in. (See number 3 below.). Some have pointed out that, of course the Shunyata presentation doesn't tell you they chose what seems to be a smaller 18ga stock AC cable to test against the higher 14ga Shunyata cable. Or: "I expected the cable to sound better, but it actually sounded worse, therefore the effect couldn't have been due to expectation bias (which is then mixed up with sighted bias generally). In other words: the measured difference shown in the video can be entirely attributed to the difference in wire gauge they chose to compare, not to anything otherwise special about the Shunyata cable. The difference in sound is not related to conductivity capacity because we adjusted the sizes during testing to account for this. I just find the lack of true, directly relevant data justifying the cable maker claims to be suspicious, and the general method of vetting their claims - sighted listening - to be unreliable for establishing the claims. 5:30 am People rage back and forth over whether high performance cables make any difference at all, and even if they do whether they can possibly be worth what they cost. First, lets look at the frequency responses measured from the speaker over each cable because this is going to have the noisiest data. a) They make a difference. They are a big part of an extensive mesh of connections connecting components of the system together. "Capacitance alone cannot account for the differences in a power cord's performance. But subtle degrees of audio performance are not the only consideration when putting together an audio system. On the other hand, the shielding may induce re-radiated fields onto the cable or component that it is being used in. So it would be great if Blue Jeans Cable could offer nice, thick gauge, but very flexible power cords that can be easily turned around corners and would stay in place. It's just how human beings work. Please read this all the way through, and then TRY IT YOURSELF! https://www.youtube.com/watch?v=RLlddMiIh0s Amplifiers: Norma IPA 140, MasterSound Compact 845, Ayre v6xe, Consonance Cyber 800 Preamp: deHavilland Ultraverve 3 Dac: L.K.S MH-DA004, Musical Paradise mp-d2 mkIII The current itself cannot be contaminated but the electromagnetic wave can be modulated with other frequencies. And despite past claims to the contrary from the AES and other seemingly authoritative sources, most people also agree that different electronics sound different. You don't think human perception and perceptual limits can be measured? Again, please point me to where I am in error about that.. The 25 Ultimate Audiophile Speakers of All Time, We picked the 25 absolute best audiophile speakers over $5,000., Ideal Room Size Dimensions and Ratios for Audiophile, Dennis Foley discusses the idea of ideal room dimensions --, The 10 Best Audiophile SACDs Ever Many Are, Audiophile music, particularly the high resolution disc format, can be, Paul Wilson wonders about the plethora of musical genres in, Can Power Cords Have an Effect on an Audio. This implies that the component is at the end of this system. WARNING: This experiment calls for cutting the jackets of the cables, so DONT use any cables that you arent willing to risk changing! Mistrustful? Tinkering Douglas_Henning (Douglas Henning) May 13, 2022, 9:31am #1359 Graeme_Finlayson: But hey, we're talking about personal tastes in relation to measureable differences with tubes. I could be wrong, of course. We created many jigs and test apparatus that allowed us to test wire types, dielectric materials, connector contacts, dampening materials and a variety of transformers, chokes, coils, ferrites, capacitors, triacs and diacs. Let's see whether or not high-end speaker cables make a difference for your equipment. But, what you do is up to you, not me. Excluded are . The hi-fi world is all about making many small improvements to your system since everyone tends to max out to the general system that they can afford and then do small things to make the system sound a little better. We dont have access to an anechoic chamber, so we went to a recording studio to collect our samples. Plus, A/B tests don't confirm the perceived gains some users report, and companies don't usually publish factual data to justify their claims. I'd like to see examples of where the noise element of an audio system has been measured and published when multiple desired tones are used as stimulation and the test gear has not been optimized for displaying minimum noise. Not like filtering water twice. Well then test the TS-terminated coathanger cable along with the other TS-terminated cables for comparisons sake with nothing but a computer and the proper interface. How would being able to measure noise on a power line "conflict with my belief system?" Thats pretty damning. Perhaps you want to give it a try for yourself. Of course, Im not going to sit here and run comparisons like this for every set of cables on the market, because thats foolish and a waste of time. Especially, when somebody makes actual measurements of physical conditions - like noise on a power line - that conflicts with your own belief system. What do you think happens during a hearing test? We are sometimes asked our opinion of exotic power cords and cables and whether or not they are beneficial or worth the added cost over the stock power cords. That is a way of looking negatively at the world as a whole, and I don't play that way. It just means that it hasn't been satisfactorily proven or explained yet. Some people would say that might be adequate time for "burn-in"; others might say that would give adequate time for my ears to "burn in" and adjust to my shiny new purchase. Do Hi-Fi Mains Cables Make a Difference? | Playbutton Debunking myths about audio cables - SoundGuys Againthat's why blind testing, placebo-controlled trials etc are used in many areas of scientific study. That's a high-end Shunyata cordthis one costs around $1500, far less than the most expensive cords on the market--coiled up like a snake or a slinky. And doesn't it make sense to withhold a conclusion until it's been satisfactorily demonstrated? As a trained (but not practicing) science, I get especially peeved at the closed-minded folks who wrap their biases in the cloak of basic scientific principles that they often they understand poorly. On one hand, it can reduce radiated fields from impacting other components. (Horrors!). Again: As I said, I'm not saying it's the consumer's job to turn every purchase in to a science experiment. 2023 Galen Carol Audio. What I find unfortunate about this is that people who fall for these demos are theoretically insulting themselves by insulting their choice of equipment. So why don't we see evidence of people being able to detect this in blind testing? Answer: As stated in #1, the component is not at the end of the power hose. Do power cables make an audible difference? "A primary source of audible sonic degradation is caused by the power supplies in our audio/video components. Ive plotted the data to show only the differences between each test run. "Most of what I have to say here are my "conclusions" based upon observation through trial and error testing. This is a thread about power cables - imaginary perceived difference vs no measurable difference. The regulations regarding noise are way underspecified and easily gamed.) I come from a family of electrical engineers and learned all this growing up, first hand. This doesn't mean of course we should all turn our fun hobby in to a science demo every time we want to buy something new. Should consumers just give up on critical thinking in the face of whatever claim a company wants to make to sell it's product.or is skepticism and critical thinking not a good tool to employ? My day job is in the telecommunications equipment biz. Just like the TS cable, we heatshrinked each wire, and bound them together with electrical tape. I hope you're not expecting an argument from me. My Cardo and Nordost measure 37pf/m and 28pf/m respectably. On the second comparison, the high-end cable very narrowly edged out the coathanger 39.8% to 36.8%. Audiogon Discussion Forum :8^). PowerSnakes have been tested with the most modest of mid-fi equipment and the most exotic state of the art components. While we didnt have a large sample size, its more than the 2008 studys sample set, so Im happy with this. If your power amp comes with heavier gauge AC cable, as many do (mine does) the Shunyata cable isn't going to make a difference in current capability, and in any case a 14ga cable can be bought for 20 bucks. It just means that it hasn't been satisfactorily proven or explained yet. Can you give a link to Shunyata proving AUDIBLE NOISE has been removed from an audio system? Misconception #6: High-end power cords just increase the circuit capacitance acting as a high-frequency shunt. For those who do not know Capacitance describes the ability of two conductors, separated by an insulating material, to store charge. It is sensitive to both USB power and data noise. Do they have measurements showing the artifacts in an audio signal? The device Samuelsen is usingthe noise makertakes broadband A/C noise and makes it audible. Do the cables matter? | Audio Science Review (ASR) Forum That's what keeps all these types of demos, and the AC cable maker claims, so suspicious. If that statement is inaccurate, please point me to my error. 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Electromagnetic energy can be transformed or redirected to lessen their effects. Part two of the disclosure: I am not employed in the audio industry. Theres nothing wrong with wanting cables to match your decor or shelling out for additional features, but be honest with yourself: dont claim they sound better. My system is plugged in via a heavy duty power strip into a wall socket. If it's measurablewell..there it is! "First would be that wire type and size in a power cord is highly overrated. If youve ever shopped at a commission-based big box retailer, youve probably had someone try to upsell you on expensive cables, gold-plated interconnects, or even specialty power cables. Is it time for science to give up on any investigations that rely on communication from a subject? It's almost impossible to design a power supply that is so poor that it *doesn't* already do what these filtering cables do. So why don't we ever see from Shunyata or other manufacturers comparisons of of the AUDIO output (e.g. You argue conveniently, so no, I won't continue to offer rebuttals. Assuming you have a standard AC outlet how far do you go back to upgrade your wiring? The reason I used a wire coathanger here is to illustrate that the improvements in performance are minimal at best, imperceptibly small at worst. Like many of the manufacturers of high-end audio components, I design my products for myself and for the love of music. Who will win, the coathanger, or the well-engineered consumer cables? Shielding of some sort is good or running the wire perpendicular to power lines (if some are near by). It makes sense to minimize coupling of noise currents in every way you can and therefore minimize noise transmission where you can. Power Cable upgrade - do they make a difference | AVS Forum
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