Fuse direction for Audio Research Ref 75SE


I am trying a SR Orange fuse, and they say the fuse is directional. The direction follows the writing on the side of the fuse.

This may be a dumb question, but which is the correct direction? Thanks.


ken6217
Fuses are not directional. You do realize that an 120VAC voltage changes direction 60 times a second. That's why it's call alternating current.
I hate to say it but the only thing directional about buying magic fuses is the direction of the flow of your money. It just went from your pocket to their pocket.

BillWojo
What's there to lose, in reversing the fuse?     Try it.   You might like it.
Post removed 
I did try both ways and one does sound better than the other.  I was just curious. The one thing they do have in common is that they both sound better than the stock fuse.


I did try both ways and one does sound better than the other.

The way that sounds better is the right direction.
The one thing fuses have in common is they attract comments from people who make up for their inability to hear by posting about their inability to hear. Never can decide which is more amazing, that a fuse can make so much difference, or that an audiophile would be so eager to advertise his inability to hear the difference.
+ 4 all four of us standing around laughing...after reading MCs post..

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"that an audiophile would be so eager to advertise his inability to hear the difference. "

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Friday night listening session.

Mechanic
Mechanic
HE Operator
Crane Operator

I haven’t seen that much Single Malt EVER drank by TWO men.. LOL
WOW. Defy the laws of physics... (I haven’t drank for decades). I dropped them off, and tucked them in...

TWO happy spouses anyways. :-).

The crane operator, has one of the nicest ALL Mac setup, I’ve ever heard.. WOW is it dialed in.

He just got the rest of the cabinets delivered from his cabinet guy.

He collect ANY Italian hand made shotgun.. 3 + million in the sound room alone of that art collection alone... Crack skeet shooter..

The Mac gear 500 large... Fort Knox secure... YUP, Hand scanner to get in the room..

Everyone of the guy that were over, ALL know, cables, fuses, and BS is abound... ALL of them have used or currently use SR, I’m the hardhead.

They make a difference...They sound better if you just leave them alone for a week or two.. Sound quit good tonight. Orange fuse in MY C20. BAMB!!!! Crane operator gave them to me to try.. 4-5 months ago.. I'd been using ACME for a LONG time, with my concoction/paste.

Regards


be careful, if you put the fuse in the wrong way, the amp will blow up, so use a broom stick, stand back and carefully hit the power toggle 
I think the juxtaposition of the centrifugal forces will determine the propensity of the dynamic exuberance and jovial placement of such fuse in it's most egocentric matrix of the catastrophic amalgamation of lunacy.  Either way works.....it's AC.
@sejodiren, ever think about a career in add copy for snake oil type sales? You certainly have the skills for it.

BillWojo
The one thing fuses have in common is they attract comments from people who trumpet their ability to hear easily heard artifacts that are readily explained by a plethora of factors other than a fuse.

The Synergy Research website states their orange fuses are directional, also they need more than 200 hours of burn-in. This is not my opinion but the manufactory's. 

After put in the new fuse, do not change direction right the way. Wait for a couple days and then change its direction. You should be able to hear which one you prefer more. if not right the way, wait for a few hours before changing back to the original direction. It may take a couple changes to find the right orientation. 



I do think some folks at Synergy Research have a very serious drug problem. Or maybe they were stoned in high school when the science teacher was explaining basic electricity. It's friggin 60 cycle AC going through the fuse, ALTERNATING CURRENT! And if your hearing a difference by changing the direction of the fuse...........
BillWojo
bill

they don’t have a 420/drug problem, they have a greed problem, a ’i think you are really stupid so i will say this with a straight face’ problem
Dollars to donuts, those who deride fuses are terrified of trying them for fear of actually hearing the difference. Kind of like staying a virgin until getting married and once the knot is tied, has to always reassure himself that he didn't miss out on anything. As the years go by, he's nagged by doubt and a good deal of remorse, yet goes overboard to keep up the illusion of a great marriage and, in an overbearing manner, advocates the same for others.

All the best,
Nonoise
Orange fuses were a big upgrade from the earlier blue ones in my system.  Millercarbon made a good reply. Ignore the scoffers.

I could tell the correct direction right away. After insertion and listening a few minutes, I reversed them.  Very small difference, but I thought it was negative. So put them back the other way, and bingo, I knew which was right.  


You really must spend the next 200 hours diligently listening to the fuse and its direction...listen closely...closer...and realize you MUST have excellent hearing and comprehension to hear the difference, and once it's right, you're likely wrong and will be questioning yourself thinking,"is it right?" No it's not...take it out, reverse it, again...wait...listen REALLY carefully...no...it's wrong...it was better before...but remember that after 200 hours of break-in you have to think, "maybe it's better in THIS direction." No, it's not. Do it all again...and again...
Do a search, you will find in my review of these the first fuse went in blind, due to the fuse holder no way of telling direction. Yet I knew within a minute it was wrong. Flipped it around, obviously clearly the right way, no doubt about it, and its that way to this day. 

Its frustrating reading people so totally clueless, or deaf (or both), they are willing to argue something like this when they haven't the slightest chance of accomplishing anything but proving just how much they don't know about audio. 

Be my guest. Carry on. Tell us some more. Never gets old. 
And if your hearing a difference by changing the direction of the fuse...........
BillWojo

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What? You have pretty good hearing, and if you can’t, you probable have a little SUCK out in YOUR ability to hear it... Not something to be ashamed about.. BUT you should be aware of it..

Most men and women, that labor for a living, have hearing loss. I have a hearing problem. I lived with sound suppressers for 30 years, till my early 50 behind hypersensitive hearing.. YUP!! I work with two other mechanics that were the same way. That problem will make you meaner than a junkyard dog... You will stay pissed off if your not careful.
At 65+ now.. my hearing is good.

I can’t hear my own heart beat anymore though. I use to be able to hear YOURS in a quiet room.
Mine was a constant Boom Boom.... Boom boom, I could hear the blood flowing in my arteries, as a kid... I thought it was normal.. yet my cousins are DEAF, because of the same malformation in there ears.. All of them..
a fusion of the little bones (Stirrup) mine was VERY thin....

The world is loud... last hearing test I had loss. I cannot distinguish above 18K anymore. I like it.. The suppressors cause ear infections and all kind of problems..
Mechanics and 600.00 ear plugs...GREASE, welding.

This gene pool probably survived because of it..BUT there is a price.

So, like Monk said. It’s a blessing AND a curse. Some folk can really hear.

At Stanford where they were having their way with me, I met a guy that lived with a hoody and a set of suppressors, just horrible, he was there from, Manilla. Drove him insane. He could hear above 21K.

High voltage lines, drove him to seek help in the US. He was crying in the hospital because of the NOISE.. Plugs, and Muffs, finally got him to quiet down after a serious hearing test..

Regards..
Answer the ac question Miller and stop badmouthing people.
Don't obsess about your own opinions and dismiss others with no evidence.  Opinions without evidence poison intelligent debate.

And remember: a person who is deaf (sic) will not be listening to music.
And remember: a person who is deaf (sic) will not be listening to music.

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MC has a beaming personality, just an acquired taste.. Cantankerous, how else would you want him?

all manbe pambe. LOL MC, calm down.... WHY?  Crap!  that ain't no fun...

Your right, about deaf folks they can't hear but they sure can feel it.. ALL my cousins are GREAT dancers.. or use to be.

They loved to have a good time. Hardheaded though.. Brash... Tough..

One worked at NASA as an instrument repair man, 41 years..He went to the moon, part of that error, and the shuttle. Taught sign language to the the early guys too. No sound in space fellas...

Hollar all day no one will hear you.. fuse that!

Regards
I am not sure what I enjoy more or find more entertaining, those promoting the change in a 0.1ohm element in front of 25-100 ohms of transformer resistance in low powered audio equipment or those screaming AC!!! like it means something (it does not in the context of the topic). Blind Sumo wrestling.

I am sure of two things, those screaming AC!!! won't be able to form an accurate argument for why that negates the fuse directionality argument and that those promoting boutique fuses won't be able to tell me for low powered audio equipment whether more or less resistance in a fuse is better and why.
If your own heart beat is loud in your ears it's pensile tennitus caused by fluid coupling from a blood vessel to your ear drum.  Most people can hear someone else's heart beat with their head on their chest :-)


People who are hypersensitive to sound almost invariably have hearing loss. They have an overreactive reaction to sound, not an ability to hear more. That hearing damage would not be surprising for a mechanic.  The alternate is misophonia a cognitive disorder which causes strong reactions to sound but again, still not able to hear better.
While your at there site make sure you pick up a -
KLANGTUCH IV -  a new and improved version of the Klangtuch III.
A bargain at $50. Believe me it much better than the 1,2, or 3. And don't tell me I can't hear the difference. 
Blue fuses blow much sooner than red fuses, but take cover when the red fuses blow😉
@ken6217-       Just curious:  Now that you've heard the differences between fuses (etc), in your equipment and room, with your own media/recordings and ears, how much faith-based, Naysayer Church doctrine (all founded on 1800's electrical theory) would it take to convince you, they don't exist?          That religion still believes electrical energy and our musical signals, are being pushed through metals.    Tantamount to buying into an antiquated Flat Earth Theory.
Do a search, you will find in my review of these the first fuse went in blind, due to the fuse holder no way of telling direction. Yet I knew within a minute it was wrong. Flipped it around, obviously clearly the right way, no doubt about it, and its that way to this day.
  • crud on first insertion
  • outgassing
  • cold amplifier [1 minute??? really????]
i would come back to say the following on the synergistic fuse topic - trying to have an open mind but still applying common sense/technical fundamentals

1) i give respect to any outfit that does money back trials... that signifies confidence in a product and willingness to put $ where mouth is so to speak - though arguing against that in this case would be if a product has 90% margins you can afford to offer free trials if there were a 50% accept rate based on user confirmation bias alone...

2) i have not tried these fuses, perhaps i will this winter given less time outside with poorer weather and covid

3) i assume that these fuses still maintain the same ratings and protections as the ’plain’ fuses they replace... it would make some sense to me that uprating a fuse with conductor elements that constrict the current less would sound better, but we obviously use fuses to protect the gear first and foremost
i assume that these fuses still maintain the same ratings and protections as the ’plain’ fuses they replace... it would make some sense to me that uprating a fuse with conductor elements that constrict the current less would sound better, but we obviously use fuses to protect the gear first and foremost

Why make that assumption? Companies like Bussman have extensive testing capabilities and can certify that the ratings for a certain fuse type will be met. Just for a quick education, go to a real fuse manufactures website and look at the volume's of data generated for different classes of fuses. Once a fuse has been altered in any way it needs to be re certified, that means extensive testing.
No where will you find a mention of fuse directionality either, it's all bogus.
Contact the manufacture of magic fuses and ask them for the data.Fuses are installed for protection of expensive electronics and to prevent things like fires, a worse case scenario. Feeling lucky?

BillWojo

easy bill

i share your skepticism

just asking the question...  i am not assuming anything
It’s all hearsay. There is no factual basis for a fuse being directional.
Couple of facts regarding fancy fuses: Virtually zero amp designers include them in their products..why not? If they've been exposed to the hyperbole around the things and they're truly a "high end" company it should be obvious...Nelson Pass...he use 'em? Also, I don't think manufacturers pay any attention to the direction of the internal wires and circuit board traces...included in the power supply, which means the "direction" of a fuse is irrelevant. The "I can hear and you can't" line is all ya got really if you buy into fuse nonsense, and that's exactly where SR is going...charge a ridiculous price and hope expectation bias keeps you from returning the thing...I tested a pile of SR fuses a while ago, and some blew (badly rated) and others didn't but made no difference...I recorded the "fused" sound with levels matched between samples of SR and Litelfuse items, and nobody I played those samples for could hear a difference either. Nonsense, snake oil, fraud.

Wolf you forgot, some of the persistent fusers here are shilling for SR with their BS.

Ho!!!  And @admin, this thread needs to be moved as well to the "Misc Audio" forum, it has no right to be here.
This is for Amplifer and Preamplifer discussions NOT FUSES!!, the heading for this thread is yet another smoke screen to get it posted in the most popular discussion group.     

Cheers George

audio2design
175 posts11-15-2020 5:55amIf your own heart beat is loud in your ears it’s pensile tennitus caused by fluid coupling from a blood vessel to your ear drum. Most people can hear someone else’s heart beat with their head on their chest :-)


People who are hypersensitive to sound almost invariably have hearing loss. They have an overreactive reaction to sound, not an ability to hear more. That hearing damage would not be surprising for a mechanic. The alternate is misophonia a cognitive disorder which causes strong reactions to sound but again, still not able to hear better.

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I give you the story, you tell me it’s not so.. When are you gonna learn to SHUT UP.. and listen. I didn’t say I like it, Nor do my deaf cousins.

My "GOOD" hearing is not attributed to the physical part, as much as being trained to repair equipment and carry tools to do it.. NO ONE like to climb in and out of caissons or a heavy tug because you forgot to LISTEN and take what you need.

I’m just now after years of wearing ear protection, able to enjoy a bit a normal, day to day function without earplugs..
Everyone likes their earphones.. I couldn’t wait for the end of the day just so I could take OFF the muffs and remove the earplugs. ONLY to have to put suppressors, metered orifices back in...

My tinnitus only lasted for 2 years or so. I had stints put in and that has subsided. I can’t SEE my chest thumpin’, NOW. The hearing part will never stop. I’m just use to it..

I started with tinnitus in my earl 60s. . Nothing to do with deformity of the stirrup (incus) and Anvil (incus). It has cost me thousands of dollars and countless outer ear infections.

My SLOPPY exit physical, was over 16k. I had even less loss in the 30-70 hz region. I was surprised with that one.

I retested 2 years ago, still close to 18K (I took my time). AND yes it will cost me my hearing just like my grandmother in her late 90. For now though. I’m blessed. AND 90, just not gonna happen.. SO maybe I’ll beat the odds, and still be able to hear. Boom Boom to my end...

George, say something different, Like Hoffa use to say "you’re wearing me out". THEN he disappeared. The little Shi$. The water still flushes the wrong direction.. down under...

It’s the first day of the week, maybe thing will change.

We’re back to NO REGARDS...and I already fed the chickens, so.. Time to talk to Bill (the goat ) for a while.