Audiophile Power Cable proves the Placebo Effect is strong Rant
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- čas přidán 2. 02. 2024
- This video 'Audiophile Power Cable proves the Placebo Effect is strong Rant', I will explain why this is not only potentially dangerous by why these so called 'Audiophile' power cables are just not needed or a thing to be concerned about. #powercables #audiophilepowercable #audiophilecable #kissanalogrant
Below is the link to the power cable that I show in this video.
amzn.to/3ulFwtQ
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I’m a retired electronics engineer from the healthcare industry. Every time I watch power cord videos including Paul’s I just giggle. I’m glad to see your video so I don’t feel like I’m living on an island. I’m all in for audio cables as audio jewelry but you gotta keep it real.
Thanks. I'm with you. I watch Paul just cause he's so dang nice;) Half the time I'm cringing;) I watched enough videos that I just had to do this one to try to get it off my chest...
@@KissAnalogComing from the proAudio end of the industry, we always referred to these cables as wanky wire, beloved of those with golden ears, which always failed to detect any differences in double-blind A-B testing... 👍🤣
Hi Eddie, nice chat. I work in advanced additive metal manufacturing and laser technologies, which involves working with a lot of RF. For all the advanced claims about cables the biggest issue I come across will be people (engineers and technicians) not getting the basics right. The most common problem on signal cables is earth loops caused by the shielding being incorrectly grounded at both ends, not related to power cables but I think some people get the problems with signal cables confused with power cables. Then I've had some of the same technicians lecture me about looms, before watching them collect excess cable into a nicely bundle tight loop kept tidy with cable / zip ties!
As for oxygen free, anyone working with advanced materials know oxygen free is an oxymoron, because all the materials will take up oxygen from the environment, and the environment isn't just the air or liquid but it's also the insulation materials. The oxygen percentage in the metal at the time of manufacturing won't be the same at some time a week or month later.
How should excess cable be handled/positioned?
@@brucetungsten5714 To minimise noise / crosstalk signal cables should be a random walk, basically a pile of spaghetti, the last thing should be to parallel and bundle them up.
@@cpcfreak THX
@@cpcfreak Yes!! In my first house, I had an all my power for outlets about 2ft off the ground through the walls and up to the equipment room. Then I ran all my audio cables, RCA and speaker wires, about 3 feet above that, but basically everything was parallel. I had a bad 60Hz hum in the sub. The other speakers were fine. So I inserted a car audio Ground Loop Isolator that I had, and the noise went away. Now in my current house (theater not finished) I have all the wires laying on top of each other along the floor, and a spaghetti mess near the equipment. No Ground Loop Isolator, and yet, no noise! ha!
Thanks for this fantastic feedback!
I always enjoy your videos. I work at an automotive company as an electrical engineer, and I had done a fun test in a Large RF Chamber. I tested HID Ballast, Burner (the HID bulb), and Igniter for Narrowband and Broadband noise. Some cars (other makers) have various methods of shielding the ballast, the igniter, and the cable connecting. One even had a wire connected to the aluminized reflector to help with shielding (and it worked to reduce the overall emitted noise (I know because I measured it!)
To start, I took background noise plots with everything turned off, just measuring the chamber as one should always do.
Then I took a measurement with a vehicle ON, and the HID headlights ON. Lots of noise!
I repeated this but with the Ballast, Igniter, and Burner sitting out of the headlight, still lots of noise.
Tried again with a ground wire from the vehicle GND to the ballast... still noise.
Then I decided to get creative and pulled out some aluminum foil. Even with not wrapping the foil super tight, you can see differences in the results with my make-shift Faraday Cage.
I wrapped the ballast (already a fully closed metal container) in foil, still lots of noise.
I moved the foil to wrap the burner and igniter, since they burner was physically mounted/attached to the igniter, and still some noise, but greatly reduced, and passing result (under the regulation limits).
I tried various other combinations of headlights from other makers on various vehicles to track down root causes of the noise. Was it our lights, or our vehicle harnesses, or some other factor. Some headlights were less noisy, and it showed even when mounted on other cars, there was lower measured noise.
I used an Anritsu Spectrum Analyzer, a Sonoma Instrument amplifier, and an Agilent RF probe 30MHz - 1GHz to pinpoint where along the system the noise source might be.
I even tried to reduce noise with various ferrite beads and n= #wraps.
The final conclusion was the noise we were measuring was coming directly from the arc in the HID burner (bulb). Inherently, arcs are broadband emitters!
It was a fun set of experiments and seeing how physics, the Faraday Cage, still works to contain electrical RF noise and/or to block it out.
Now everything is LED lighting, so no need to think about HID anymore!
Thanks for this fantastic information. Yes, aluminum foil is often used in EMI chambers as a tool to find the noise;) Noise is like water in a balloon - you squeeze one place and it comes out in another;)
@@KissAnalog mainly copper foil used in chambers.
Ignorance is bliss and often, costly. Totally agree. Super excited for the class D amp design. Maybe GaN FETs, love it.
So true. For those that are open to learn I want to be the voice of reason;)
I think Gan fets is the way to go I want to know what they would be like running with a valve/tube cos they're very similar I think in the operational parameters.
I think the way to go is to include output filter into a feedback loop. I do not think it is easy though.@@hoobsgroove
@@jakubczajka4275 the idea of having a Gan fet is they don't need feedback circuitry
Same as a single class valve amplifier, so you could run them in tandem is what I'm thinking! the valve can be the driver for the Gen fet or vice versa.
I am not into audio or anything like that but this video made me laugh out loud. Excellent.
LOL - that's awesome!
I build such a high end power cable for my Macintosh MC275 by myself. Sheelded, each wire coated with ferit material. Expensiv connectors...
And i can tell you, it LOOKS great.
Greetings from Germany.
Thanks. How often do you have to re-coat the ferrite ;) ?
The ferrite is abaut 0.5mm thick. The cable is made by a company named Eupen. The connectors i don't remember, maybe Furutec. I build the cable because I wanted to know if I could hear a diference. And I could not.
@@MR_Elektronik Roger that! All the Hype..... created a whole Industry in the Audio World, and the Audio Retailers LOVE the Profit, from the so called believers.... Lol
Oh man. I remember working on some machinery a few years back. The electricians wired per the drawings but we had all kinds off issues with the machines. We had to go back and rework most of the shield terminations for the rotary encoder cabling on around 30 machines. You are absolutely right, that pigtail termination without connecting the full 360° of the shield back to the chassis is nearly worthless. Keeping the shield fully intact made a night and day difference in machine operation.
A couple years ago I restored a little regulated power supply that came from a flea market. One of the things I replaced was the old power cord. The replacement cord came from the junk bin, but it just happened to to have a foil shield. I went ahead and attached the drain wire to the chassis, bit I couldn’t help but laugh while doing it.
Thanks for this awesome feedback and real world experience! If there is a shield in the power cable - you connected it to the correct place - the chassis. Nice work!
Just recently I have discovered "cable risers". I think it beats every other Audio BS.
New old stock 1963 'tinker toys' have better sound than 'Lincoln logs' from latter years 👍
I prefer Lincoln Logs ;)
Noob. Wait until you find "audiophile" level power outlets and the need to "break in" both your power cable AND the outlet!
No! It's the fuses now!
@@DW11111out yeah... there's also the amazing Cable Burn-In devices...
You most certainly earned yourself a new subscriber! I'm a bit of an audiophile myself but work on automated construction equipment and GNSS by day. Although I'll admit I'm a bit of a noobie, I really appreciate your thorough breakdowns and the more I learn about RF and EMI the more I see the audiophile placebo effect in products!
That's fantastic! Let me know what I can help with.
@@KissAnalog just keep putting out great content! I've got plenty of videos to catch up on lol.
Good episode. In the early 90's I was a guest at Compaq down in Houston, and visited their EMI testing building. As I recall, it was pretty huge, and definitely beyond the budget of almost any company.
Thanks for this feedback! I think it is always fun to visit someone's test sites. It is an eye opener for the first timer;)
Just discovered your channel. Fascinating stuff. It's great to hear from an actual engineer who is an expert in the space.
Thanks so much! I appreciate you!
I think this type of connection where the thing between the two metal pieces is non uniform and can change with temperature - much more than metal - and then more importantly it is like a seesaw where the force on one end will be different than the other - unless they are sucked in exactly the same. So, I could see a minimum torque, but I don't know if this would be critical. I'll ask my Sr. Mechanical engineer at work next week (he's a materials expert) and get back to you.
Hi Eddie, Thank you so much for the informative video and also thank you for the time it takes you to make this video. I thought it was excellent.😄
You are very welcome
Thank you so much for this video🙏
You Bet! Thanks for your feedback!
I really appreciate this video, eddie
Thanks so much!
Nice and incisive explanation 👍 💯
Do interconnect cables have the shield connected to earth (ground ) on both sides or one side only?
Thank you! This is a great question! I'll have to check my cables and get back to you on an upcoming video where I tackle interconnects;) But, the short story - they should be connected at both ends;)
Best thing you can do for your audio and video gear, is to drop a circuit (new electrical run) from the panel to your gear. Install a quality outlet, Home Depot or Lowe’s sell everything you need.
Thanks for your feedback. The receptacle in an older home might be worth replacing if it has been plugged into and out of many times... And if there is a particularly noisy circuit that you have to plug into - maybe a different circuit would be better. But unless those things are in bad shape, I actually think that is a waste of time and money - but not near as crazy as the power cord. The power supply just simply takes care of things.
@@KissAnalog House wiring is a funny thing, and can and will introduce noise, as will ethernet. Electricity vibrates, it will actually loosen the wires at the outlet and breaker connections. Most folks do not know that. Light switches in the circuit or other outlets that are being used for other devices will add noise too.
It is always good to at least check the switches/outlets, make sure the wires are secure, and torqued to proper specs if you want to be anal about it. Yes, there are torque specs for outlets, switches and the breakers.
Myself, it is better to replace older outlets/switches, with a quality Leviton, one with screw hold downs, not the stab connections in the contractor grade outlets.
Inspect those circuits! ;-)
And agree on the power cords, and I own a few high dollar ones, as you stated, "jewlrey".
Pro audio is full of switching power supplies. The first ones started to appear about 24 years ago. Mixing consoles with over 60 dB gain powered by switching power supplies capable of +/- 18 V 20 A. No noise, nothing. Or the the famous Lab Gruppen amplifiers powered by a 7 kW fly back (Yes, fly back, schematics can be found on the web) converter powering a traditional AB amplifier with rails driven with buck regulators. Crazy machines. Today you can find class D amps generating 20 kW from +200 -200 rails. All switching from the mains power switch to the speaker connections. I used to work on those long ago. The people developing those know everything about EMI and I learned a lot by working on those things and studying schematics and the things not visible on the schematic.
Wow this is great feedback! Yes Switch Mode Power Supply Engineers - like myself - work in EMI all the time;)
@@KissAnalog If you're interested, a service manual for the Lab Gruppen LAB 2000 is available on the internet. Those were developed around 1999 and available in 2001. Rental companies were in that time very skeptical about anything with switching power supplies and expressing their concerns about noise and stability. Unlike Crest, Lab gruppen is still around today. But of course the class B stage has been replaced with a class D.
Thank you!
What about the miles of wire leading to the system? We need a battery powered system within a Faraday cage. Thanks!
Exactly! And then there's the EMI filter at the input of the Amp - so how does a short cable make any difference?
@@KissAnalog Agreed!
Finally someone is saying exactly what I have been saying all along. This should be 101 for any audiofool. Cable management is more important to 2k power cables.
@47:00 You literally described how financial system works....
Thank you! Yes cable management, lets do the important stuff -- which is free;)
Eddie, your are correct about the faraday shield. Audio is so low in frequency that your are in the near field. Near field is dominated by the magnetic field. You reduce the magnetic coupling by twisting the wires or add ferrite bread..
Terminating the shield at one end only provides electrostatic shielding. Also, breaking the shield removes the common mode current. The wiring carries difference current.
Eddie, as a practicing EMI engineer of 47 years, I've experienced some of the best and worst wire harness shielding practices you can imagine. The primary reason for failure is the assumption that coupling is Electric field only. The Magnetic field will bite you all the time. The two main coupling paths at frequencies below 100 KHz is common ground impedance and aperture coupling. You always have common ground impedance coupling with safety ground systems. The safety ground wire provides a parallel path for common mode current. The idea is to use a single point ground system or a star system to isolate each unit. This works with a composite structure, but metallic structure provides the parallel path. Even with composite the carbon fiber is conductive. This is why trying to shield power wire harnesses against the magnetic field is difficult. Shielding the magnetic field you have to short it out or reduce the loop area. You can use permeability materials, but weight is the big factor. Next is twisting, but the effects of twisting will be nullified by the connector. Untwisting is required to pin the connector. The general length for a MIL 38999 connector is 5 inches: 2 inches for each backshell and 1 inch for the barrel.
Thank you for this fantastic feedback! I hope folks read and re-read this so that it sinks in;)
I work in aerospace. The prime criteria in an evaluation is not engineering experience or judgement but objective evidence.
Thanks for this fantastic feedback!
Awesome video learned something today about emi. 👍 also that beer looks delicious.🤤
Thank you! The beer was tasty;)
Hey Eddie! I haven't watched the video yet, but somehow, I just know that you had way too much fun making this one! LOL! Fred
LOL - thanks Fred!
Good video with great information.
I have purchased a few high-end audio systems but was always dubious about expensive cables. Had some confirmation last year when I saw a power cable marketed as a one-way cable, optimized to flow current more efficiently toward the electronics. Had a great laugh. I am guessing they did not like my comment about AC flowing both ways.
I always wondered if stereos had a special impedance challenge delivering 20-2000 hz to the speakers. I found a company that kept the signals in the digital realm to the speakers. Each speaker had its own DAC and each driver had its own AB amp attached to the speaker optimized for the driver. I guess that nukes any impedance problems and the marketed need for $200-per-foot cable.
Thank you! 'One-Way cable'?? That might be the best example of a seller's expectation of the ignorance of his market!
Thanks for the great feedback!
X-Files should've done an episode of hifi cables. 'I want to believe'
LOL thanks!!
First of all love your channel but I like to stay on the fence as regards power cables one thing I do know is if you run a flux volt stick along an unscreened cable it buzzes like hell when it detects the live conductor if it’s screened and connected at one end this stops. Surely this must have some benefits as regards to being in close proximity to other sensitive cables. Could that be the reason why some people say they can hear the difference. What are your thoughts.
Thanks for bringing this up. I wish I had though to address this. It is a false positive;) The screen keeps the buzzer from indicating as much - but the noise is inside the cable on the wires - which are hard wired into the power supply - so the shield does nothing to prevent this. And I did say nothing. It is what we call conducted emissions - it is already on the wires. But - it just doesn't matter - the power supply cleans this up and turns it into DC. People that show this - show how little they know about the subject. It is a dead giveaway of the lack of knowledge in the field.
Ed's "Power Pole" Lol ! we don't have them in England ! I remember using Amphenol connectors all metal heavy screens very tough don't know if you heard of them. Yeah most consumer leads are what I call 'Kettle leads' think it might be IEC but yeah the filtering deals (if its good) with noise hence the bloody name ! Oh I hope the PCB for the first bit of the JAT amp PSU is going well...cheers
Thanks for your feedback! I think I found a pcb house - I just have to firm things up;)
😂 Totally enjoyed the 1 hour rant sprinkled with insightful explanations. Always a joy to learn.
Thanks so much! I appreciate you!
"I saw on the internet that some of the screws were loose so sure enough mine were too." Eddie admits he's got a screw loose. LOL. Always enjoy the rant videos.
LOL so true;)
Would love to see you do a video on power conditioners/regenorators.I am no expert but am of the understanding that these devices may have some benifit ( besides protecting equipment from power surges) in source components but no so much in a quality power amp as these have their own filters and capacitors to do this.Would be interesting to hear you thoughts on this.Great rant and makes a lot of sense and interesting to hear coming from someone with a lot of knowledge/experience in the field who doesn't sell or review hifi!
Thank you! I have thought about this - but since there are only so many companies selling this - I didn't want it to be so obvious who I was talking about. But - I guess I should not be concerned about calling them out;) My wife hates it when I call someone out - she is so nice;)
Hi Eddie...your thoughts make total sense to me. I build in-situ instruments and have a project that is very sensitive to RFI. To make a long story very short, my solution was a faraday shield...enclosing the entire instrument assembly in a metal box. I like you idea of connecting faraday shield to faraday shield to keep RFI out. I was use thought though going forward when I remake cables for this system. Thank you!
Thanks Steve! Let us know how it works for you;) Great to hear from someone fighting the good fight:)
Thanks for the clarification and debunking of another myth, Eddie. I've heard the same thing said about the ground loop for Ethernet cables as well, it's unfortunately not just the audio industry that has the misinformation spreading.
Thanks! The audio industry has gone bonkers in cables lately;)
When the mains and speaker cables are twice as thick as the current wires for our Kemppi 400A MIG welder at my work and in addition just by themselves costs as much as a house or a sport car this is a clear indication of 100 % snake oil to me.
So true! If cables did not cost so much - who would care? And there is absolutely to reason that they should cost so much!
37:06 good save man! LOL!!
thanks!
Wow Eddie, this is one of your best videos in my opinion. I've found the information Paul disseminates very disappointing. If he wants to sell audio products like shielded power cables and power conditioners, he should stay away from touting theories with partial or zero science backing them. It's a conflict of interest.
Hey, I'm about to start my 21st audio electronics kit build. I just received the Wolverine amplifier boards from the third group buy. This will be my most ambitious project yet. I'll be winding inductors and matching BJTs. I'd like to see a video on transistor matching. I tested the DROK, but
it was inconsistent. I think I'm going to get a Peak Atlas Component Tester. Let me know what you think.
Thanks for this feedback! I think Paul is putting his engineering mind aside when he sells this stuff, but he has been successful at making money;)
Wow - it sounds like you are going to have fun. Let us know how your amp build goes;)
I think for an LCR meter, it is worth checking out the Hantek: amzn.to/48cDlqq
But if you want a component tester - there are a number of low cost units: czcams.com/video/BK7gnJavW28/video.html
I have to wonder if the guys throwing away 1000s of dollars on 1000+ dollar power cables know that they are plugging into a $2.00(likely less) wall receptacle that is connected to the cheapest 14/2 Romex the building contractor could buy?
LOL no worries there - they can buy super expensive receptacles too. I doubt that they are UL approved - just like the power cables are not...
Truer words have never been spoken.
Thanks so much!
A CE mark on a US plug? That alone is hilarious 😂
China Export
Thanks - have you seen this video that I did on the CE mark? czcams.com/video/h6eebkRj7YI/video.html
Wow, shield 3-6 feet from the wall to the amp and then there is 20-30 or more feet between the wall outlet and the breaker box and maybe 100 or more feet to the utility transformer.
Yep - sounds nuts - right;) Thanks for your feedback!
This would make a great demo, if only I knew someone with lots of test gear ....
LOL - I will do a demo ;) Thank you!
Great insightful explanations. What are the benefits of PS power supply in a short? For instance Sugden's 50th anniversary amp has it, came out last year. Thank you. Kind regards, Maj
Supporting company that can't hire proper switching power supply engeneers.
Their company has quite different job on that front: selling their power conditioners (useless for switching power supplies). I guess they don't even use regulated lineal power supplies where those should be used (at least everywhere except final amplifier).
@@volodumurkalunyak4651 Can you do more context? Who? Sugden? Power conditioner??
Thanks - I'll have to look into the Sugden. I understand that they claim to have designed the first pure class A amp. But I don't know their story.
Gold plating is to prevent the copper from OXIDIZING !! That’s all.
That is right - thank you! And Gold plating is very inexpensive - so no need to run the price up on a cable.
I was watching your collaboration videos for the JAT-501 SMPS power supply and I got up to video 8 but now I am confused did you ever put together a finished schematic or design a pcb we could actually order? Your videos are awesome and thank you for sharing your wealth of knowledge.
it seems you didn't answer my question
Thanks so much! I think there might be 15 videos now. Things came up last year so I put it on hold but restarted it late last year. This video showing how the low frequency switcher works helps people see how this works and then when I show the PFC converter again - it will be more obvious why the switching power supply is an improvement. Here is the link to the playlist: czcams.com/play/PLZ0_iMoMBSsmIlKA6Zm_TBnimgF88G5Ky.html
Yes, I am going to do a video on this series very soon and I think I found a board house for the PCBs. I'll announce this when I'm sure.
New on your horizon... sucked in by the "placebo" in the title 🤪 And, as an Australian, I like the sheep dog on the shirt! This comment is as long as a good rant. Apologies in advance.
Totally agree with your comments on that cable, and for my eyes that shielded cable looks a lot like a poorly designed dipole antenna. But audio stuff is a great way to take money from people, it is - safe (poor audio never killed anybody), profitable (quality building of audio frequency gear is not that expensive), and easy ( people who can afford this stuff tend to be older with impaired hearing and plenty of denial).
My signal handling "expertise" was developed doing biophysics many years ago - no AC hum with gear sensitive to 0.1pA, derived from a saline filled glass electrode feeding an op-amp with 10^9 gain. And that was 40yr ago! We limited RFI with a faraday shield and only DC inside. The rest of the magic was eliminating ground loops in the signal circuit. I may not be an expert but I've solved some problems in this area and had to prove it.
I hear the talking about shielding and loops and I agree the audio blather people seem to use both words in the same sentence without the understanding.
I also agree terminating the shield at the device chassis is better. It is the electrical equivalent of a chassis extension, but the shield is not keeping the AC out, because, by definition, it's already in the cable inside the shield. These sorts of low frequencies have wave lengths in the 1000s of metre/yard so the bit of shield on the cable is irrelevant. Taking the shield back to the transformer might make a little difference (but see how you go with the safety inspections).
The audiophile box builder can handle the problem of outside interference from both high and low frequency sources by shielding the power transformer (or switch mode power circuit) with lots of filtering on the DC before it heads to the signal section, and good quality metal boxes to house the sensitive sections. Basically a little bit of braid on a short power cord will never compensate for a badly isolated power section inside the box.
Finally, the ground loop problem happens if the signal reference (a.k.a. 0V) is not the same in all parts of a circuit. A voltage difference happens when current is passing along the wire(s) forming signal ground. I can explain with an historical example which dates from a time before double insulation was a thing. Picture some critical devices connected to a patient in a 1960s model ICU and each device is plugged into a socket. The room has been upgraded and another power circuit has been added to accomodate all the new fangled medical equipment. So, the patient is connected to gear on separate circuits which have separate ground wires joined at the junction box quite some distance away. Now a cleaner, on the other side of the wall, but sharing a circuit, plugs in a vacuum cleaner. Vacuum cleaners have been notorious for sending current to ground. With several milliamps flowing down a ground wire, and passing outlets connected to the patient there is a voltage drop so the "ground" on each of the devices is different and current will flow from one "ground" to another. Depending on conditions this can be through a person's heart and bad things can happen. These days we have a standard where all grounds in the ICU form a loop and earth leakage protection is set at 5mA. Also the gear is a lot better so overall risk is better again. I so love not being in the "good old days"!
But, in audio land, we can still have "ground loops" (the most obvious sounds like mains hum). That's why there should be the "one true earth" on the back of the amplifier to which all signal wires are referenced. This is termed a "star" configuration - one point for all and only one for each. If the audio system components are built properly they will have properly separated safety ground from signal ground. All the shields go to safety ground and attach to the metal boxes, i.e., cable shields are extensions of the Faraday cage. The cable shields should not be connected to the signal ground. Pushing this along there is no problem if the signal cable shielding is grounded at both ends through metal connectors so the signal is enclosed in the one big Faraday cage. In reality audio stuff doesn't need this, which is why shielding is not done properly on audio gear - it just has to look like something complicated to justify the price.
And, yes, we do need to connect the signal to the safety ground, but it should be in one place only.
BTW if you are preparing further rants -
1 oxygen free copper -some oxygen in copper can improve electrical properties but excess levels may increase embrittlement (eg., eu.leco.com/images/Analytical-Application-Library/ONH836_O_COPPER_COPPER_ALLOYS_203-821-436.pdf)
2. Litz wire for audio frequencies, where the skin of "skin effect" is pretty much the whole wire - pure and very expensive snake oil (eg., google audio cable litz wire)
My AU$0.02 comment is that no improvement can beat a bit more copper. So people who seriously want extremely low impedance from DC to 100KHz can use a pair of 1/2" water pipes for the speaker leads (hot water pipe already has insulation). Way better electrical performance at a fraction of the cost! Inconvenient maybe, but who said extreme audio was meant to be easy? 😜
Wow - Wow! What fantastic feedback!! Thank you very much! I was saying - what not an expert - sure sounds like one;) Thanks for the link - and I have been considering tackling this but I thought they audiophiles would think I was a joke;) I think it is worth addressing;)
I sympathize with your frustration. :-) I spent 8 years designing avionics for that little St. Louis company that built the F-15, and then moved on to designing 'tronics for earth-moving equipment. Did a lot of analog stuff and spent a lot of time getting my stuff to pass the EMC requirements. Eventually helped suppliers get their stuff to pass the EMC tests, and then ended up in our EMC group (we had two semi-anechoic chambers, a shield room, etc.). Learned a lot of stuff the hard way, but also attended various classes and lectures. I'm not sure how you convince non-technical folks that they really don't understand this stuff. As for putting a shield on 3 feet of power cord, but the electronics itself isn't shielded... it makes no sense (although this can vary on the test set-up and size of the electronics being tested). There's nothing like running a real test to reveal the truth!
Thanks for your great feedback! I know what you are talking about. If people realized how much thought and time goes into this stuff - and those that do it - how much we learn - they might actually appreciate our wisdom;)
We didn't give importance to Power cable before...
I think it is manufacturers who find that it is an easy way to make a buck. Huge profit margins... IMHO
i'm an micro electrotechnical engineer and am glad with your hifi videos.... the more expensive hifi-gear costs ,the flashier they look, but the less they do and peoples who sell your shitty cable must me go back to school
Thank you!
Don't Linn do switching power supplies? Or have I the wrong tech.?
Thanks! I do teach switching power supplies. I will show how a switching power supply does not care about power cables. I mix it up and do videos on Audio as well;)
Good job man :-) Love the shirt and the beer. Another great video, probably my favorite. I enjoy goofing around with audio circuits now and then but unfortunately I don't want to be associated with the idiot audio fools out there so I don't advertize any audio wisdom I might or might not possess. I recently moved way on up to the north east of Utah from the Sandy area. I grew up here in the land of zion so I'm well accustomed to the culture here (Bizzare to say the least). I have noting against the people here though but I really don't enjoy being emersed all the time so being where I am now, I'm much more isolated which suits me fine now in my old age.
I'm gratefull that you've let people know how to make a proper shield. I've written several reviews on amazon explaining why many crapy ( in my opinion ) PSUs on there employ a very effective antenna with the long DC leads comming from the poorly designed supply with lots of unsupressed switching noise coming out of the super long DC lines on the output. I illistrate how I tear the supply apart, add low pass filter, cut the DC lead to a shorter length to fit my needs and wrap the supply with what ever foil I happen to grab at hand, and ground it all. All of that is just to show a bare minimum to make your shop less noisy so you can work on RF equipment without being blasted with interference. etc... rant... rant... Thanks man :-)
Thanks for this great feedback Keith! I know how you feel - the Beliefephiles have made a bad name out of Audiophiles. Oh well - I'll try to save some here and there;)
I live in Sandy now;) I don't know if you knew that. I know what you mean about the Utah culture - but it is changing slowly;)
Glad to hear that you understand the whole grounding principles;) Keep us up on your adventures;) I appreciate you!
BTW, I've done a number of videos on ground - have you seen this one: czcams.com/video/sgp-0xR8Voc/video.html
The neutral of the 'power distribution transformer' is almost always bonded/connected to a cable that runs up the pole, from a ground rod, at the foot of the poles. (That's a modern standard.) So there's a ground loop there too... although the neutral wire probably carries most of the current... since, it's lower impedance.
I should say, there's current in the neutral only if there's a fault (or a partial fault) somewhere. Usually should trip the GFI.
Yes, the ground rod does not carry any current. The impedance is far too high. It is there to direct lightning to earth.
The current in the neutral should be equal to that current in the hot wire but if some leaks off in the ground - then the fault trips the GFI.
I’m starting to see a pattern in the world of hi fi: a general lack of a Systems Engineering mentality. Eddie’s rant on power chords exposes another example. If a high-end shielded power chord improves a system, the problem is not the old power chord but the equipment it is powering. Systems Engineering would say it exposed, maybe, a poorly implemented equipment power supply that was not robust to input noise.
Another area that suffers from a similar lack of a Systems Engineering approach is the voodoo around digital sources and cabling protocols. Here, some “good” DACs should be exposed as lacking robustness (which is sometimes a consequence of digital protocol, SPDIF/TosLink for instance). Instead, though, audiophile voodoo emerges that, say, streaming is inferior to playing CDs, or that an audio grade network switch or a fancy digital cable improves sound. The reality is, though, that the DAC is to blame. It fails to be robust to upstream variations, for instance, by lacking galvanic isolation from the digital input or by not internally reclocking the input.
The tendency by audiophiles seems to be not to address or blame robustness, but instead attempt to hide the problem with additional “remedies” (expensive power cables, ignorant attitudes towards digital sources, etc).
Thanks for the great feedback and insight.
Appreciated your "rant" ! Having worked for a defense contractor for most of my professional career, I can second your comments about "EMI guys"- there are not many of them and they are highly sought after and very busy! Lots of copper lined screen rooms and anechoic chambers, calibrated antennas, expensive test equipment needed for emi testing. You really made drove the point home with your example of your expensive analyzer being supplied with just an ordinary power cord. The most expensive piece of gear that I used, an Agilent PNAX costing about $250k configured as it was a dozen years ago- was supplied with an ordinary, unshielded ac power cord- go figure..... Your Beer looked good.
Thanks for your great feedback! Working in the field you really gain an appreciation for how hard EMI can be to squash. If a power cord could do it - we would spend the money.
The beer was good;) Cheers!
I started out listening to Paul because he made sense for a while, but then he no longer made any sense (I think he talked about feet to keep your speaker cables off the ground) and I'm glad to see that I'm with the engineers on this one. I never did believe in power cord nonsense. Do people know how much the power rail voltage can sag from a linear power supply? I'm not too familiar with how bad EMI is because it's usually filtered so well, you don't notice it. My USB DAC though, it's sensitive to my cellphone and other stuff, and I hear noise in one or both channels. Same for my cheap TV DAC. So clearly there's such a thing as adequate and inadequate filtering.
People get real confused about grounding though! An easy way I can explain it to people is that, if a wire comes loose and hits metal, that metal needs to be grounded so that the wire shorts to ground and trips the breaker. An oversimplification but where I live grounded outlets are the exception, not the rule, and so people don't get what ground is for, it seems.
Thanks for your feedback! I stop listening to Paul for awhile, but then I see a title so I watch it - and even though he speaks so nice and seems so nice - half the things he says I just have to cringe;)
@@KissAnalogHe's very charismatic. He should lead a cult. Oh hold on...
LOL
If that short length of cable makes your audio sound good, just think how good it would sound if you ran that cable back to the supply transformer. Surely, the screen on that power cable should be connected at the amplifier end and not the supply end?
LOL I think it would be best to terminate the shield at both ends, but if one end is chosen - I'd say it should be the load end.
A double-blind test and a large bet is the way to resolve these disputes. Have someone swap in the expensive cable with a cheep one at random hidden out of sight and challenge the fool to tell you which cable is in use at which time. Neither the fool or you (he might be reading you) know which cable is used in which test until after the tests are complete. If he can pick it out more than 80% of the time, he wins otherwise you win. Simple, unarguable, no specialist knowledge or theory required!
Thanks John! Yes - the fact this has not been done (or results have not been provided) speaks volumes. I did hear one guy on YT say that he did a 'blind test' (not double blind). In fact he used his wife to listen - so how do you think that played out;) If his wife can't read him - then she should fail;)
Preaching to the choir here...sorry, it's an uphill battle. I used to do open-field radiation testing for our Ultrasound machines. In another life, I also did some testing and remediation for a major manufacturer of PLCs. The only way that power cable will help is if you are running over a motor.
Thank you for your feedback and experience !
Hey Eddie can you please make a video about this subject "wrapping electrolytic caps in copper foil"
The id*ot from Real World Audio,youtube channel has done this to his DIY tube amps.
OOOOH my! I have heard of this lunacy;) Yes - that is worth a rant - and a beer;)
Using a short piece of over expensive power cable, while the entire house has unshielded cables in the walls and ceilings, you don't have to be a engineer to realise how silly that is, and that it is a complete waste of money.
Also, the entire powergrid is very polluted with all kinds of signals on top that make the electricity that comes out of the wall very dirty.
Most street lights are turned on with a signal on top of the powergrid, also some power meters in the breakerpanels are driven with a signal on top of the powergrid, to switch between day and night cost rate. Also the use of Internet Homeplugs place a signal on top of the 120/240V , for all that pollution, a fancy power cable doesn't do anything to filter that out. A power cable only job is to deliver power with a certain amount of amps, that's it, no further rocketscience needed.
Thanks for your feedback! Great points!
@@KissAnalog , To shorten the above story.
Buying an overpriced "shielded" power cord is like standing naked in the rain, wearing only a condom, and hoping you don't get sick. The only difference is that a condom doesn't cost a arm and leg. Grtz
I find it it interesting that everyone feels the need to tell others how to think or what they hear. If someone hears something because of placebo effect. Great enjoy yourself. If someone doesn’t hear anything. Great you didn’t hear anything. Who cares. Just cracks me up how people have to tell other what to think. Both ways. Relax. lol. Just enjoy yourself.
Thanks for your feedback. But it is not about 'not being able to hear the difference' it is about - it is the question - is it possible that a power cable can make a difference? There should be a way to measure this.
There are those that think that they need to spend the money to buy a cable because they are told it will make a difference. Feeling like you are missing out is sad. If this is a placebo affect - then these people can rest assure that they are not missing anything. And if you do have the money and an audiophile salesman is pushing a useless item on you - then you should know what they are made of, and can then be aware of whatever else that they try to sale.
As an engineer it is an interesting point to see if a cable can actually make a difference. At this point, it seems ridiculous, but I will keep testing and see if I can find anything remotely possible.
Those that say that they can hear the difference - will not do any double blind tests to prove this. The vendors can not show any measurements - even though they will show all kinds of measurements on the amplifiers and speakers.
If you are into audio jewelry. If you like it - knock your self out and splurge. The placebo affect is not a bad thing - as it works - even if you are aware of it. My clean car just runs better - or is that my belief?
52:15 😂 Right on!
Oh, man! Your system got stolen?! That sucks. Sorry to hear that.
Thanks so much! I appreciate you!
Thanks Nick! Yea it really did suck. I kept paying for my storage for years after because I just couldn't get myself over there and see that hole where my collection was;(
@@KissAnalogThanks, appreciate you as well for sharing all your information and knowledge. I think the best anyone can really do is to buy a hospital grade power cord if they’re so concerned, and make sure interconnects run at a 90 degree angle over power cables and aren’t parallel to them. As you mentioned, cable management is important. I’ve bought a few of my cables from Blue Jeans, as they use quality Belden cable with quality ends, but I’ve built most of mine doing the same for very little $. Thanks again 👍🎶😊
@@KissAnalogAh, damn, dude….thats rough. I’m sure you had some really nicely made gear. Again, so sorry to hear that. Too bad people can be so shitty to one another as to take what’s not theirs.
Were you talking about E probes, and H probes, and E field meters? (Analog E field meters, and 'close in' E field probes were fairly common, for looking for EM radiating from PCBs, or components, on PCBs. I think simulation, and better design, has eliminated some of that.
Thanks for the question. I have used near field probes, but much of the hard core EMI testing that I am referring to is with far field antennas. Actual EMI testing in both open air and chambers.
Your 100% all right, but no point in arguing with a fool.
Thanks - you are right - but I do hope to be a place of reason for those looking for answers.
Seems to me that connecting only one end of a shield amounts to creating an antenna. Of course wavelength would be a consideration in that sense.
Thanks - and you are so right;)
Linus over at ltt tech(the popular computer youtube channel) he paid to get a pretty decent chamber made . I'll see if I can add a link for you!
Love the video and love to hear the facts
Thanks! A good or workable chamber and test equipment cost way too much for many companies. I'd like to see what his chamber looks like;)
The audiophile guys are obsessed with noise. The power supply in a unit will take care of any noise in the mains power through rectification: AC → step down transformer → rectification → ripple filter → voltage regulator → DC. There is thus no need to invest in an exotic and expensive power cable.
Exactly! Thank you!
Totally agree with you. Amazes me all the hyper expensive kit i.e.. mono block amps etc... They swap a power cord and Wow! Such nonsense, the kits psu will sort just what it needs. You Kind of hope the designers/ engineers ensured they designed a decent power supply inside the kit. Never had any issue with noise on my hifi kit.
As for the cables - they tried to copy the cables from the Servo Motors Industrial. As for the quality of that cable in your video - it's horrible, not even insulated wire ferrules put.
Thanks for your feedback! All the cables that I've seen that are custom - look suspect to me - in one way or another. As far as I know - none have a safety certification (UL listing).
Legit audio engineers are outnumbered by Audiophool “engineers” here on CZcams by a wide margin.😆
Thanks - I think you are right;)
genius!!
Thank you!
Gold plates to copper; but, usually the copper is plated with nickel first. If not, with the thin layer of gold, it will eventually diffuse into the copper. Me thinks, if it's gold, it's for 'show.'
Indeed, most of audiophile grade terminals are made of brass, because it's easily machined unlike copper and then gold plated for corrosion resistance.
Thanks - yes I should have pointed out that it is only a plating. And it is used for corrosion - and for marketing;)
@@KissAnalogYou are (unfortunately) correct. So called flash gold plating is applied to... proper nickel plating underneath. In general, the brighter the colour, the thinner the plating, proper gold plating has an almost dark, deep hue to it.
Beer advertising spoils the impression of the video.
Thanks - I understand that some people are triggered by this. But if they can get by that - I hope there's good content.
Lol audiofool 😂 great rant loved the video.
Thanks so much!
I think there's a lot of issues with cheap Chinese cables a lot of them are steel with copper coating a copper cable of decent current is bound to be better, I would say, solid core as well, I would just use the stuff that's in your wall 2.5 mm x3 put some plugs on the ends Bob's your uncle fany is your aunt.
I like a bit of the IPA Indian pale ale use the like flowers but can't get it anymore not over here,
We've got one of those fancy off licences that just opened up massive building maybe they've got that American brand have to check it out😊
How much is the microscope, are you happy with it? I want something to look at phono cartridges, so really high magnification and that's clear.
I'm glad you mentioned it I've learnt something today!
is there any benefit except structurally to have a braided shield not earth on either end?
So the whole plug plastic structure needs to be earth and earth to a plate on the socket, you could use copper tape have to start doing that.
just use the one supplied with your equipment!!? ...for christ's sake. :smh:
did you listen to anything he said?
I like the Hazy version of IPAs.
@@XX-121well if you've got some cheap cable that's mainly still strands and the strands break really easily I can't see that's good for EMI, if you got solid core you're not going to get any breaks plus the inductance capacitance is eliminated more.
@@KissAnalogwhere did it come from forums to terminate it at the wall😅
I've learnt something today makes a change
@@hoobsgroovenext time you go to a concert, you know all the wires that go from the stage all the way to the sound board and from there all the way to the amps, then all the way to the speakers? all stranded wire. copper is maliable it's not brittle, its not going to start snapping when you plug your gear in. if it was it wouldn't get UL approval. you know what doesn't have UL approval? audiophile cables. heck the ones those guys are peddling online arent' even properly tightned down half the time. the factory stuff is welded/melted together. doesn't need tightning.
I’m not willing to learn about basket weaving ……..do I get a 0?
No - not here - we don't teach underwater basket weaving. We leave that to the audiophiles;)
I'm not fond of Paul, contradicts him self all the time. When I worked in an audio manufacture over 30 years ago, I learned something, customer had $1,000 to spend, we recommended he spend that on good equipment. a week later he showed us his new shoes he bought for $1,000 - the lesson, he was going to spend that money, he wanted to spend it with us, be we didnt have anything he didnt already have. Today, if a customer wants to spend that money with you, then sell them something. - is an overpriced power cable differnt? sure it is, its built with a lot of labor and parts and uniq designs, so sell it.
Thanks for your great feedback! Very nice to hear real world experience!
Go watch the Furutec video on how cables are assembled.
I know how cables 'should' be assembled. I have worked in industries that demand high quality cables and are willing to pay for them - they just are not power cables. BTW - I have watched lots of YT videos showing how to build power cables - and they do it wrong. Simple as that. They have never worked in EMI labs and wouldn't know the difference in a good cable vs a bad cable. In fact UL would have to wince at them. I haven't seen one yet that is UL approved. Safety first please - Placebo comes in at near the bottom of the list of concerns/interest.
All screws MUST be TORQUED to spec!!!
Well - I think its OK to make sure that they are reasonably tight. A couple of mine were loose. But this cable is around $50, so I'd hope they could tighten screws. It is metal screws in plastic - so torque specs would be very unreliable.
@@KissAnalog the bare copper cable is screwed into two THREDED plates; this is where the torque force is critical.
I can hear the difference between a quality cable and a cheap cable
Thanks Mike! There's nothing wrong with that. I think my car drives better when its clean too;) I think its natural that we appreciate quality. But - we really can't hear the difference in a power cable - it just doesn't matter. I will show more evidence of this in videos to come.
@@KissAnalog every once in a while, I bring out and plug-in the stock supplied cables (like the one the one you showed) …..that lasts for about half a day!, and reinstall the higher quality cables with great relief. I CAN hear the difference.
na man, he knows he's scamming people. he could care less if it's correct or not when he's selling $15 cable for $5000 or whatever it is. it's really sad he's so popular here on this site because half of what he says is horse hockey and these people with more dollars than sense eat it up. i quit clicking on his videos a long time ago so i don't have to see them popping up on my feed. never learned a thing from that guy.
The 'expensive' junk science always happens when a small audio manufacturer needs cash; expansion with new employees or a failed marketing campaign.
I think I have seen one video of PS audio (guy about 50-60 years old if I remember correctly). He was claiming that studio speakers, or studio equipment in general is not suitable for domestic use, because it does not sound good enough. Something like that. He landed on my list of blocked channels, so youtube won't try to show me any of his videos ever again.
@@jakubczajka4275 yeah, that sounds like him! :) lol
@@jakubczajka4275 He turned me off when I saw his video supporting speaker cable snake oil.
I think you are right - unfortunately.
I´m a denier but I´m a believer in EMI filtering (and way more since all this green power): I´ve developped and qualified since the 80´s a lot of commercial (also for audio), telecommunication, avonic and military products, including equipment cabling and PCB layouting. I´m an electronic engineer and so far a bad liar.
It´s only about making big money!
Everybody can make cable. Never saw measurements or reports from this cable manufacturer, you´ve to believe them, so sorry, for this purpose I´m going to the church. No, I´m not an Amir or Paul creditor but like both.
I think an European audio company need an EMI engineer or buy expertise (CE certification). I know Chinese companies with EMI engineers making a good job for CE qualifcation. I know a lot of US companies without any EMI engineer. Perhaps they´re thinking that audio is only NF and not RF?
CE mark for NEMA product? Mandatory for IEC or SCHUKO for sales! No doubt, Chinese production.
Standard nylon braid cable protection or jacket, unnecessary if only one big cable, just looks good.
Big 3 strand main power cable for 125VAC/60Hz up to 15A (2.5mm2?).
I´m ok with this mounting screws then connector body is isolating plastic (creepage from L or N pin to PE or earthing).
As you noticed, bad fabrication quality.
If I´m correct, we´re only talking about EMI suceptibility of the cable?
Cable conducted or radiated EMI problems are to solve at power plant or into the interconnected device.
Measured the shielding conductivity (milliohms) of this cable regarding some EMI norms? Impossible, then not a Faraday cage then one end open and connectors are made from plastic (I love your comparison using the image of EMI water).
I know, NEMA, IEC or SCHUKO existing long before EMI problems where addressed (principaly in the EU; FCC is not so strictly; military adopting slowly IEC). They´re a lot of good industrial AC main power connectors for best shielding on the market but not mechanically compatible with NEMA, IEC or SCHUKO. Always MIL round one (conductive shrinkboots) are much better.
BTW, take a look at your housing power plant and buy EMI filtered devices or well developped products.
But they´ll continue to make big business. Customer don´t stop buying chip devices and investing in expensive cables. Never ending story!
Thank you Eddie, Prost! A votre santé!
Thanks for this great feedback! I can see that you have a lot of experience in the field. I appreciate you!
👍💯👍
Thank you!
Stickin' to my 2 dollar cords ;-)
Smart man;)
@hoobsgroove Not familiar with cheap Chinese "steel with copper coating" cables,sounds iffy, but I do know that they make Copper plated Aluminium cables. I think that's what you're talking about. Anyway, that's no reason to go with solid core .... just get a genuine multi-strand copper cable.
Yes, CCA (Copper Clad Aluminum) cable is a thing, I had to dissuade a friend from getting budget LAN cabling that was CCA. Copper Clad Steel is also definitely a thing, has been for ages. Two major applications are for self-supporting cables (e.g a coaxial cable that can be strung across a modest distance with its weight supported only by being wrapped in a loop at either end), and mains distribution ground wires. It has a habit of appearing in low cost test cables (e.g. alligator clip leads, some of mine are), as hoobsgroove says, if one of those leads easily become hot when passing some current, point a magnet at it and if the cable is Copper Clad steel it will be attracted to the magnet.
Thanks for the great feedback here;)
Kinda looks like a hospital grade plug with gold foil or shiny brass parts....
Hospital grade plugs are good enough for my needs. And they don't catch fire.
Thanks - It does look like that;)
Has anybody started a business selling audio grade electricity yet? None of that generator rubbish but made from good old DC?
LOL - But honestly - I think some of these companies actually are aware that they are selling snake oil. I hate to think that - as I know most do not have the engineering expertise - but I do think it must be true...
@@KissAnalog have you looked at "synergistic research"? They are the pinnacle of guilded snake oil, and I am sure they know.
But the fun thing is: if the customer will fight tooth and nail that the stuff they bought is legit, have they really been betrayed?
Wow - fuses??? I think when you spend so much and think that you have this highly resolving system...you have to defend it and your decisions;)
@@KissAnalog sunken cost fallacy
😂😂😂 Brilliant!!
Thanks!
they look better then a standard cable and you pay hundreds of euro's without being tested ...fake stuff i'm micro electronic engineer and have to laugh about the prices for those shitty chords
Thanks for your feedback!
Fidelity does not matter much to older males with hearing that cuts out at 2500 hz
LOL - you are right;)
Thanks for making this video Eddie. Here is a video where Jay lets us hear two different power cables without letting us know what we are listening to. Check it out and see if you can hear a difference. Without knowing what cable is in use, how does this affect the placebo effect?
czcams.com/video/u8A3uwxpHIE/video.html
Thanks for the great question. This is a great example of how this topic is left to some serious issues that make it very difficult to come to any type of conclusion.
The sound system is recorded on some type of mic - but what is it? And then it is played through CZcams - and we are meant to believe or hear a sound difference?
If there was a difference, then the mic recording could have been put into a computer sound card and a real time analyzer would show any difference.
If this mic recording can be made through a computer - then played on CZcams - It certainly could be played through the Real Time Analyzer.
Ok - so now to start with - we are to believe that a power cord could somehow make a difference in a DAC - that is immune to noise?? Also a DAC takes so little power - even an undersized cord would be just as good. I'd like to know how expensive is this DAC? Also, why didn't the manufacturer of this expensive DAC provide some esoteric power cord? Power cords are a complete rip off.
it starts around 30 minutes...
Thanks ;)
Send this to GR Research. Lmao.
LOL I think he would call me a flat earther;) It's ironic that the believers call the scientist flat earthers;) I think he stopped doing that after he caught some flak for it.
@@KissAnalog he knows exactly what he's doing. He makes money of those without enough intellectual escape velocity.
I contradict you - www.youtube.com/@AudioScienceReview - Audio Science Review :))
LOL - I think AudioScienceReview and I have the same take on these - right?
Hmmm, short shielded power cable that plugs into mains with 100’s of feet of unshielded wire up to the transformer at the pole…. Yeah well, I am sure it makes a HUUUUUUUGE difference😂😂😂 sadly, EMI is greatly misunderstood and undertaught. (Have spent quite a lot of time in EMI-labs too)
You know what I'm talking about;) Thanks for your feedback!
Audiophiles get their knowledge from company brochures and salespeople not from any type of formal scientific training. They also have some crazy ideas about data communication, as in, Digital interconnects.
You are so right David! Unfortunately there are some companies praying on audiophiles to make easy money on cable sales...
I don’t doubt about the claimed credentials of this gentleman. I sm interested in what he has to say. In fact, I have like he does, an iconoclastic streak in me. But I find it cumbersome this whole introduction with the fukiphino beer. For two reasons: 1) I selected to watch the video because I want to hear what he has to say as a man of science. But this plug in the beer brand is an obstacle. My mind detects it as a hidden agenda that makes the claimed topic of his video seem as a leading loser. Not as the direct straight talk topic I expected. Made my mind wander does he pens that beverage company? He seems like a likeable man, even an experienced man in his field. I can respect that. However he has a circuitous way to arrive at the topic. His discourse makes an attempt perhaps to be funny. But in my perception it backfires. He does not stay in track. That comes dangerously close to a silver tongue snake oil salesman. Mmmm! It is no good to allow your audience to go exploring about your personality and intentions when that are seeking a direct exposition on a topic. 2) this fine electronic technician/engineer/ man of science whatever -we never got it clear because he never said what his credentials are because it was more important to plug the beer he is drinking, has a relaxed drowl in his speech pattern. That might be even be sexy. But it is tacitly out of place. My mind wandered into “is he tipsy or drunk” while doing this video? Mmmm! Not a good thing to provoke doubt in your audience about your mental state. It takes away from your message and it destroys your credibility. If this very likable person thinks that a CZcams video, on a technical topic, is the place to address an audience of people the same way he talks to folks who have known him for many years, well, he is wrong. Cardinally, radically wrong, catastrophically wrong. This is the equivalent of say, the chief content of absolute sound making any of his videos while smoking a joint. These are serious matters. People, hard working Joes like me included, we deserve to be treated with respect. Not to be toyed with. I clicked on the video seeking information from an expert. Not to have my mind played with, plagued with, doubts about the honesty and intentions. Scientific information delivered directly, with human warmness plain a simple. That is what the world needs now.
Thank you.
Thanks for your feedback. It is curious how some people are so triggered by a glass of beer. I only wish I had kickbacks from the beer company - but I am confident that they do not care about my small channel. I start off declaring this is a 'Rant' which is when I kick back and have a beer.
You start off by saying that you 'don't doubt about the claimed credentials', but then you say in your point #2 that you don't know what my credential are because I didn't say. Well - I think that I did refer to myself as an engineer, emi expert, power supply engineer a number of times. I even reported that I taught Industrial Electronics at a community college. I think you are so triggered you became deaf.
I am talking about science, and any expert can, and has backed me up in the comments. Science is true - this subject is based in physics. I am not asking you to believe - as the vendors of expensive cables do.
I'm sorry that you were so triggered, and maybe I should think of people like you - that can't get by the sight of a beer. So much so that your spelling and grammatical errors abound. I can see that you are upset - or could I, like you, jump to the conclusion that you may be drunk or high? I won't do that - I think you are just upset and I think it is too bad that you didn't learn anything watching this video - or did you? You didn't say. BTW, did you notice that the edited part of this video is one hour long and I still have beer left?
You are correct - there should be a certain amount of respect - especially when I am here giving my valuable experience and insight - for free. When I come home after my day job, and make a video that includes hours of filming and editing - if I want to do an occasional Rant and have a beer - then I should be OK doing that on my own CZcams channel. I get it - there will always be judgmental people, so I could avoid these attacks by reframing from showing any personality or character of my own. I could simply state facts - and work for the people. But this is my channel - which is my hobby that I share with anyone that wants to watch - or criticize.
That's clutter!
LOL - you mean my bench? What did you think of the Rant?
Sir all respect to you and your qualifications but you brought nothing new to the table believe me i didn't believe that power cables could change the sound but i like others have heard the effect demonstrable when o changed them back and forward not everyone's hearing is good enough to hear a difference and o understand the placebo effect is real and for some audio enthusiasts ot will be in effect it also works with electrical engineers who staunchly believe cabled can not change sound they are never going to hear a difference because they have already made up their mind or their hearing simply isn't good enough to tell of you look at science and sound low bass frequencies are extremely long compared to high frequencies in wave length so theoretically the interior of a motor vehicle is to small to produce bass to 20 hz or lower yet its well documented vars make nasd to 20 hz or lower headphones are another example amd hearing experts can weigh in on this
Regards and best of luck
Sorry about spelling mistakes, big fingers small keyboard 😂
Thanks for your feedback. I do appreciate you.
But listen to your own bias 'engineers who staunchly believe'... Why in your mind are engineers staunch believers - when their experience is based in science and experience? It is the one that can 'hear the difference' that is the staunch believer.
I am simply showing how a power cord can make no difference in the processing of power - and I am not done yet:) You have to remember it is engineers who designed your audio equipment and recording equipment. It is engineers who have designed the test equipment. Some of this test equipment is in excess of $200k - but only use basic power cords.
Wait until you discover speaker cables and interconnects lol
EDIT - nevermind... didnt watch long enough lol
Thanks!
I like jewelry, not needed, but it's "pretty" 🤭👀🫣🤔😳😁
Yes I agree - it does look nice. Just so long as people are not fooled into spending money for something else. I have a jeep and we jeep people like to dress them up - but most of it doesn't make them better off road;)