Newer units have reversed the orientation in order to fit thicker audiophile power cords. They should not reverse the electrical wiring.
Makes sense. Thx explaining wklie.
hi moli,
i have made the experience that switch mode power supplies make less measurable and audible differences than linear controlled ones. i can’t say if this is generally the case.
i would trust the measurement with a dmm more than these boxes.
the box of my friend at my dac who has a smps showed that there is no difference. with the dmm there was a small difference reproducible. but it was not audible either.
in sum, the result of these boxes is probably exact enough for the listening impression 
cu
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Electrons have no memory of where they have been, anything in the path either has enough electrons in the valence layer of each atom to move from atom to atom for the required load or they don’t and electrons always take the path of least resistance. They do not take a scenic route that will bring them fond memories and they always behave the same when they get to their destination, electrons in the valence layer of each atom jumping from one atom to the next the easiest path possible.
In nearly all equipment except electric motors, especially amplifiers, it is rectified to DC downstream of the fuse and it does not matter whether it was 50 or 60hz or 400hz as in aircraft (which can use smaller transformers for weight saving) nor whether it was a clean sine wave up to this point not to mention miles and miles of whatever condition of wiring prior to this so called magic fuse. There is nothing a fuse can be made of that would make electrons behave any differently than they do and once again, it is all rectified to DC and in the case of an amplifier, it is rectified to negative and positive voltage as amplifiers have both negative and positive DC rails so ideally one would have smooth ripple free DC and to simplify, the input audio signal is used to shape the available negative and positive voltage into a higher voltage copy of the input signal as closely as possible which is why people keep trying to design variations in amplifier design to basically make a more faithful copy of the input signal, no electrons from the input signal ever go to your speakers.
Sadly having designer fuses is what happens when people knowingly market mysticism and prey on those who don’t thoroughly understand electronics. Anytime you substitute mysticism for knowledge you are an easy target. A friend of mine who has been in the audio industry for years took one of these so called magic rocks people set on their amplifiers only to find a scrap piece of Dupont Corian inside the pretty package. He called the company marketing it and threatened to drop one of their rocks from the top of the hotel in Las Vegas at the CES show to have it break open in front of people. The marketer begged him not to. Once 25 years ago I walked into an audio salon in Orange County California, saw fake rocks on top expensive amps and walked right out. I would never trust anyone who even sells this stuff. You can best bet that the designer put a lot of thought into having a clean power supply under the varying conditions they expect the equipment to see and adequately shielded from anything in the audio path. If you do not trust them to have made good design decisions, don’t buy their equipment.
If your system needs tuning as it were, there is nothing short of altering the design of the audio circuitry that would tune this save for a really poor power supply and no fuse will have any effect whatsoever on that unless it’s too small and blows open. If you want purity, have no fuse at all, I absolutely do not recommend bypassing the fuse, they are there for obvious reasons, namely to prevent a fire and affect the audio in no way when not blown.
One also has to read through marketing speak of equipment manufacturers themselves as often made up terms are used. There are also a lot of legitimate things advertised such as topology differences between one manufacturer’s equipment to the next. As to whether these differences lead to better results is the age old question but still worth studying how they arrived at their design as sometimes their design differences make sense.
Finally, you can always find a detailed report supporting your beliefs as you will always be able to find someone to tell you anything you want to hear, truth be damned. I will also leave with the fact that the biggest problem with one’s ears is that they they are connected to the brain and something as simple as having invested money into something will bias that person into thinking they hear a difference. Not surprisingly, all these revolutionary devices of now end up being for sale within a year or thrown out as worthless.
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Well said David.
I wait with bated breath for someone to say “Have you listened to a hi-fi fuse?” and “If you haven’t then you’re not qualified to comment.” 
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Your erudite and considered post won’t make the slightest bit of difference.
Some people believe they can see fleas in a flea circus
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It’s coming I’m sure.
That’s why people love the original Quad ESL’s (ESL-57’s), there are NO fuses in the power supply at all. That’s even better than a designer fuse. It cannot be beaten for transparency. It’s so transparent it sounds like it’s not there.
The Dyna PAS preamp which many people love also has no fuses. Heath UA-1 EL84 tube amps; no fuses.
I think we are on to something here…
Sheldon
Just use a penny. I’m sure it sounds as good as anything. And, it only cost a penny.
True, I will not put anyone out of an ill gained career. People think they see Jesus in a water stain never mind that their paradolia is based on a centuries old Anglo painting.
Fun fact - The most common visages of Jesus are really Cesare Borgia.
When one of the Borgias, Cesare’s father, bought the papacy he made his son the face of Jesus.
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Six long paragraphs that say nothing. I get that you are smart. You have proved it here. Just don’t talk down to every one here that has heard a difference when changing fuses. Use moderately expensive power cables? Blasphemy!! How about expensive interconnects? No way!! Auralic makes a better streamer than Sonore? Can’t be. They all sound the same. We can do this all day. I installed “audiophile” grade fuses in my equipment and did hear a difference. Was it night and day? No. It was subtle at best but it sounds better now. I don’t need six more paragraphs to tell me it’s BS. I can hear it. If you can’t then just don’t buy or install them. It’s that simple. Then don’t come here and tell me what I heard didn’t occur.
Yes, 36 minutes.
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Yeah well. Either way it was six paragraphs of bad argument. Best just move on…
I’m always amazed at people who don’t understand what confirmation bias is.
The brain is a simple thing to trick which is what double blind testing exists for. All these people who have heard a difference with fuses, never mention their testing criteria other than being something totally subjective (personal listening tests) that reinforces a desire for a difference.
Reminds me an awful lot of this test: https://www.realclearscience.com/blog/2014/08/the_most_infamous_study_on_wine_tasting.html
TL;DR?
You can take white wine, put red food colouring in it, hand it to wine specialists and they will think they are drinking red wine.
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'cause wine is just glorified paint thinner. 
You mention equipment that can indeed sound different just by architecture alone so suggesting that I believe otherwise is putting words in my mouth which is not ok. Of course there is a difference between Auralic and others, all their differences are in the audio path design and the equipment is where the money should be spent.
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Interesting since I always thought I got a worse hangover from white wine from over doing it. I’ve never done a valid controlled experiment, get drunk blindfolded? I really hate the morning after overindulgence anyway so it could be belief as I don’t know that much about wine.
Confirmation bias can be very powerful unless you are the person who says, “wait a minute, I need more data”.
Well… the link is to a media report on the test, not the test. From the limited inference you can make from the data table, I’d say that when presented with a glass of red liquid and asked to describe it, the test subjects used words the test designers believed might normally be used when describing red wine. I can’t infer that they can’t tell the difference between red wine and white wine by taste and smell alone.