Quantum Science Audio Thread


This is a thread for those who wish to discuss Quantum Science Audio products of all types.
tommylion
I currently have a yellow fuse in my amp, a yellow in my preamp, and a violet in my dac along with red stones inside my breaker panel. This is the best sound I’ve ever had, by far. So engaging and seductive. I want to listen for hours. Awesome products!
I believe this has already been asked, but I don't remember seeing the answer.  Are people buying the exact same voltage ratings, or going up a notch or two as with the SR fuses?
Thanks
Great thread idea! This is where the real advances in audio are coming from, and will be for the foreseeable future. The old school stuff audiophiles are familiar with is being transcended by stuff like this that virtually no one understands.

Tim Mrock was ahead of his time. His stuff was and is awesome. But nobody keeps great stuff like that secret for long. Lots of people are on to it now. NPS1260, what do you think that is? SR fuses and outlets, the glob of gray goop they tell you not to remove, what do you think that is? I'll give you a hint, the top end QSA Red and Black fuse uses so much they had to stick a piece on the side.

Once you get a clue and learn to read between the lines, there's a bunch of em out there all doing basically this same thing. All trying to figure out exactly what is going on in order to do it even better. As with all things. One more hint, Mahgister has been doing it for years. What do you think his sandwiches are?


Thought some might find interest in this, it is translated but reads pretty good...


The current limiting function of the fuse is the basic common sense of the protection equipment, I believe everyone knows, needless to say. I have known the importance of the fuse from the beginning of the road to audio. It is not only its role in protecting the safe operation of the equipment circuit, but also the only way for it to dominate the current-starting equipment. This bottleneck often kills the audiophile power supply. The cable plays the best sound effect, so in the audiophile audio market, the fuse is already an important part of audio accessories. There are many fuse products on the market, the price gap is huge, and the sound is biased. Finding a fever-grade fuse is always inseparable from the few well-known brands. As long as a product has market value, it will attract competitors to share a piece of the pie. This is an era of weeding out the weak and staying strong. It is necessary to show housekeeping skills and have advanced processing technology as the backing to gain a foothold.

Generally, enthusiast-grade fuses start with conductors and do not hesitate to use gold, silver, copper, etc. to make alloys, or even pure silver, which is much better than using low melting point lead-tin alloys, zinc, copper, and copper-plated silver materials. Some of the copper caps at both ends are nickel-plated, polished and then plated with a layer of rhodium platinum, palladium or platinum, and even worse, a layer of pure copper is plated on the tellurium copper, then a thicker layer of silver, and finally a layer Pure gold, combined with the sound characteristics of gold, silver and copper, in addition to improving the electrical conductivity, it is also helpful for sound calibration. Traditional fuse tubes use quartz glass tubes, as well as ceramic tubes. Some contain ore powder and absorb resonance in the fuse tube, which can reduce the harmonic distortion present in the input current and ensure better power supply stability. In order to improve conductivity and sound transparency, silver-tin soldering is used, and a more advanced special crimping module is used without soldering at all. Finally, some fuses also reduce internal resistance through freezing treatment or high-voltage pulses, and conduct faster.

As mentioned above, some of them are unique production and processing technologies of a certain brand, but they are also inseparable from the fields of conductor materials, electroplating technology, welding technology, etc. The following introduces Quantum Science Audio's fuse products, which are truly breakthrough production and processing technologies. The sound is vivid. I have known Quantum Science Audio’s technology as early as three years ago. The metal activation technology that it promoted was initially only applied to metal conductor wires, and then gradually expanded to vacuum tubes, adaptors, capacitors, electronic parts, etc., as well as equipment. The metal case is really incredible. I have to mention the Quantum Science Audio R&D team. Under the leadership of Leader International, Mr. Zeng has overcome many difficulties. Mr. Zeng has been in the audio industry for more than 30 years. Every issue of Chinese and foreign audio magazines is always uninterrupted, with unremitting spirit to face and solve, with strong comprehension, can draw inferences from one another, and many audio mysteries can penetrate the mystery.

l conductor wires, and then gradually expanded to vacuum tubes, adaptors, capacitors, electronic parts, etc., as well as equipment. The metal case is really incredible. I have to mention the Quantum Science Audio R&D team. Under the leadership of Leader International, Mr. Zeng has overcome many difficulties. Mr. Zeng has been in the audio industry for more than 30 years. Every issue of Chinese and foreign audio magazines is always uninterrupted, with unremitting spirit to face and solve, with strong comprehension, can draw inferences from one another, and many audio mysteries can penetrate the mystery.

Closer to home, back to the Quantum Science Audio Quantum Science Fuse test. The models are divided into five grades by color. From high to low, they are red, light purple, yellow, light blue and black, and there are four under each model. Series, respectively, A-Analog for analog equipment; D-Digital for digital equipment; S-Sub-woofer for active subwoofer; V-Video for video equipment. The four series are tuned to make the equipment unique effect. Fuse values ​​are available, ranging from 50mA to 30A. Both long (30mm) and short (20mm) are available. Both fast and slow burn are available. British (25mm) have 4 values ​​of 3A/5A/10A/13A. , All QS fuses have a variety of safety certifications CCC, UL, VDE, in order to comply with the regulations of different countries.

Looking at the content of the advertising leaflet, the ten thousand yuan-level top class Quantum Science QS Fuse has ten American core technologies. After chewing the text, I feel that some of them are illusory and vague. I understand that it may involve trade secrets. It is impossible to say too much to prevent plagiarism. One point: The music release/burst technology can reduce the impact of digital sound. Mr. Zeng has repeatedly emphasized this core technology and this is the only one. Another key point is the metal activation technology: increase the amount of electrons flowing in molecules per second, and the larger the increase, the better the effect, which can increase the dynamic range and sound density. Metal molecular compression arrangement technology: Due to the reduction of internal resistance, the speed of transient response is accelerated, and the impedance is 5 to 30% lower than other brands. Metal molecular noise drop technology: Make the background more quiet and the details clearer. Resonance point adjustment technology: lower the resonance point of the fuse tube to reduce the vibration of the conductor molecules in the tube, so the sound field is more stable and the image is clearer. A small black sticker on the tube body is used to adjust the physical resonance point. Using special elements and quantum technology, the elements are put on the surface to reduce electromagnetic interference. Add a small amount of 10.5% conductive ultra-high pure silver tin wire to improve sound transparency. The metal caps at both ends of the fuse are coated with micro-nano oil to make the contact points closer. As the contact points increase, the amount of current passing through them also increases, making the low frequency more stable and diving. The fuse conductor adopts superalloy to adjust the sound, the sound has an excellent balance, and there is no loss of low-frequency volume at low level.

Since the replacement of the new generation Esoteric K-01Xs SACD player, the fuse is directly welded on the circuit board, so the test fuse falls on the front stage, the rear stage and the split power supply. The current fuse has been continuously updated for several years, and the sound effect has been quite satisfactory. First, replace the QS "red" Analog fuse for the previous Artemis Labs LX-1, and listen to Zhao Peng's "Subwoofer 3 Car" XRCD2. The voice is high and the mouth is focused. Sharp and transparent, full of air,

The knot of the instrument is exquisite and embossed, the high-frequency extension is more extended, the details of the weak tone are clearer, the sound quality density is higher, the music atmosphere is more lively, the low-frequency harmonics are more abundant, sitting on the sofa also feels low-frequency diving. Then I replaced the Artemis Labs SP-1 300B XLS with 2 fuses on the rear stage, the same "red" Analog, and then listened to Zhao Peng, the sound has been blasted out, the vocal texture is rich, the image is more three-dimensional, the music flavor is strong, and the sound quality It is more consistent, and the transient speed and micro dynamics are comprehensively improved. It is as transparent as a microscope and reproduces in detail and clear. The position of this post-level fuse has been replaced by the fuse tested over the years, but it has never performed the full sound effect this time. , The sound quality and sound effects have been upgraded several levels in succession, tut tut amazed!

Finally, replace the QS "red" Analog on the power supply of the rear stage. The noise on the platform is lower, the image of the instrument is stable as a rock, the positioning is clear, the low frequency is more bounce, the lower potential is more calm, and the sound field is more spacious. Taller and wider. In the end, I used the live recording of "Impression Lijiang" gold disc for the ultimate test. This 2006 recording directed by Zhang Yimou was recently relaunched on the gold disc version. The sound effect is better than the CDR in my hand. There is no suspense. Listening to "Friends Come" It's-Drinking", the crowd's shouts are sonorous and powerful, the front and back positions are clearly explained, the sense of hierarchy is clear, and the sense of space on site is vivid.

In the following "The Voice of Su Gu Tuk", the strings of the stringed instruments at the beginning were tense, and the calls of the crowd flew out of the left and right speakers, reflecting the large performance venue. The density and transparency are very high. The most powerful low frequency is stronger than that. In the past, there was a shocking feeling. I am afraid that the bass beats are distorted. Now the transient speed and control are improved. The sound quality is calm and oppressive. no. From the above test of Quantum Science's top Analog fuse, the sound quality and sound effect of the pre-stage and post-stage have been fully upgraded to the highest level. Seeing that Pu Dong’s last test was also QS’s top-level Sub-woofer fuse. He used to use Procella P18 18-inch subwoofer + M&K MX350 SFXL 12-inch subwoofer to create a horrible sense of pressure. Now M&K 12-inch + QS Sub-woofer The fuse can achieve the same effect, and different series of fuses do have unique effects on the equipment.


Quantum Science Audio uses innovative and breakthrough technology to produce fuse products. Metal activation technology is also becoming more mature. It can be applied to various audio products. Regardless of the price, QS's top fuse is indeed the most comprehensive and effective product I have tested. , But the price is also the most expensive on the market. Fortunately, he has four other models. The retail price of the most basic model is only more than two hundred, which is rich and frugal. Lastly, QS fuse is directional, and there is an arrow on the fuse tube. It must be installed along the direction. If it is not correct, the treble will appear dim and lack vitality. You may wish to remove it and install it in the opposite direction before listening. Once again, there must be a difference.


Wow, great read. Thanks for the post tommyu!

I’m wondering if the end caps of the fuses being coated with 1260 or TC paste affects things negatively after reading this part...

The metal caps at both ends of the fuse are coated with micro-nano oil to make the contact points closer. 

That is the purpose of a contact enhancer. To increase the surface area of contact with a material that’s more conductive than the parent material. The reduction of Nano Ark. (George hates this one.)
IT may also inhibit corrosion and act as a sealant around, not between surfaces.

Regards
Anybody use bare wire coated with TC or equivalent on speaker cables in lieu of connectors?
I imagine the coating of the enhancer would have the secondary effect of inhibiting tarnishing of the wire.
It is unfortunate the article begins with the false notion of the fuse being there to protect the component. The fuse is NOT there to protect the component! The fuse is there to protect the HOUSE!

Takes about one millisecond to understand the fuse cannot protect any component. Does a fuse stop a tube burning out? How is a fuse going to prevent a resistor or cap or transistor burning out? They will and do all the time. All the fuse does is if this fault causes the component to draw too much current, such as with a short, that could generate enough heat to start a fire. Then and only then does the fuse do its job by burning out, which otherwise could result in a fire.

Other thing unfortunate is fricken Goolag translate:
Every issue of Chinese and foreign audio magazines is always uninterrupted, with unremitting spirit to face and solve, with strong comprehension, can draw inferences from one another, and many audio mysteries can penetrate the mystery.
Clear as mud, but it covers the ground.
After chewing the text, I feel that some of them are illusory and vague.

I'll say.

This part though is interesting:
metal activation technology: increase the amount of electrons flowing in molecules per second, and the larger the increase, the better the effect, which can increase the dynamic range and sound density. 

Okay, well electrons are subatomic particles. Molecules are combinations of atoms. So conflicting scales. Molecules do not flow, only electrons. You guys caught that one, right? Once again clear as mud. But at least we get the idea, there is some underlying reason why these things are so much more dynamic and clear.

I did find one useful bit of possibly solid information:
Series, respectively, A-Analog for analog equipment; D-Digital for digital equipment; S-Sub-woofer for active subwoofer; V-Video for video equipment. The four series are tuned to make the equipment unique effect. 

Is this correct? Or another translation snafu? Because when I ordered mine off tweekgeek.com there was size, color, and fast/slow. That's it. No A, no D, no S or V. 

Awful lot of reading to wind up with more questions than answers. But, thanks. 
Fuses suck period 
I am glad my Bricasti dac-Streamer don’t use them ,one less bottle neck 
Installed Yellow into my Lampi Pacific yesterday and have had two days on it.  I did try to paste the 1260 to the end caps but it was almost impossible to install without losing it all on my fingers.  I still have 3 other components to install the yellow fuse to.  

Question on directionality...what exactly will you hear if you install the fuse the wrong way?  I have had the SR Black, Blue and Orange.  My assumption has been as you look at the back of the amp, I place the fuse going left to right with the writing on the fuse.  Either i have guessed right everytime or that is the correct way to install. 

I am not ready to provide my analysis on the yellow in my Lampi  I am going through a process of picking music that I know I can hear sonic differences. One example would by Nils Lofgren Band Live -Girl in Motion song.  The guitar solos are really good.  


Fuses suck period
I am glad my Bricasti dac-Streamer don’t use them ,one less bottle neck


Yes so does this "snake oil" talk about them here.
And btw they are not a "bottle neck" for the AC supply. For them to be that they need to be far more "resistive" than the "minuscule couple of milliohms" resistance they measure.
There more resistance in all the ac switches you have in series from the mains box switches to the wall socket switches to the equipment mains switches, than that 1/2" long piece of fuse wire in a fuse.

To those "non technical" members that are interested, do not listen to fusers, listen to the techs of this industry that design the audio products you have.
AND YOU WON"T SEE THEM ON THREADS LIKE THIS AGREEING WITH WHAT THESE FUSERS SAY IT WILL DO FOR THE SOUND, EVER!!! LET ALONE BEING DIRECTIONAL!!!!!
Just clean and tighten your fuse holder and re-new your fuse (if old) with a good quality 50cent Bussman, Littlefuse or similar.
As with "many switch-on surges" they do deteriorate, bend, stretch and get crusty with electrolysis formations on their fusible wire elements before they give out, as these pics show of a fuse wire element ageing over time show. https://ibb.co/9NbTwqK
(even the $$$ boutique ones will age just as much also)
Cheers to all "non fusers" George
The fuse is NOT there to protect the component! The fuse is there to protect the HOUSE!

This is a false premise.

The fuse in the device stops it from drawing too much current and destroying its components.

It is the circuit breaker in the power board that does not allow the wiring in the walls to exceed its capacity and consequently protects the house. It also detects earth leakage and protects humans.

Well, that didn't take long....
The proverbial bad penny, no less.
George -  while I appreciate your science and opinions about fuses, we have all heard them countless times.  I am not an audio engineer and I just love to listen to great music.  IMO fuses matters.  I would like to hear from more people like myself.  

You are free to continue posting as you want.  But I ask you, given that we all know your position, could you please please please just let other people comment on this subject.  

Respectfully
Will




Your kidding, and let "snake oil" and "voodoo" companies flourish, with posts from shillers for those same companies here on Audiogon??? NOT LIKELY!!!!!!! No matter how nice you ask, and it was nice!!

There are plenty of the correct forums for them and you to visit

https://www.google.com/search?q=snake+oil+forums&oq=snake+oil+forums&aqs=chrome..69i57.7881j...

https://www.google.com/search?q=voodoo+forums&oq=voodoo+forums&aqs=chrome..69i57.3710j0j15&a...

To those "non technical" (like yourself) members that are interested, do not listen to fusers, listen to the techs of this industry that design the audio products you have.
AND YOU WON"T SEE THEM ON THREADS LIKE THIS AGREEING WITH WHAT THESE FUSERS SAY IT WILL DO FOR THE SOUND, EVER!!! LET ALONE BEING DIRECTIONAL!!!!!
Just clean and tighten your fuse holder and re-new your fuse (if old) with a good quality 50cent Bussman, Littlefuse or similar.
As with "many switch-on surges" they do deteriorate, bend, stretch and get crusty with electrolysis formations on their fusible wire elements before they give out, as these pics show of a fuse wire element ageing over time show. https://ibb.co/9NbTwqK
(even the $$$ boutique ones will age just as much also)




George you were asked nice. VERY nice as a mater of fact by the OP. Be a gentleman and move on. ONCE was enough a second or third is not OK. After that it’s beyond turning the other cheek. OR I suppose ALL your post can be removed.. It’s strictly your call..

You’re NOT welcome to add your adjectives or adverbs to ANYONE on the forums as you do.. It’s gone on long enough.. QUIT interfering with OTHER people’s sales. It’s as simple as that.

STOP! YOU’RE costing other people money, now I’m complaining about YOUR behavior, NOT what your selling..
Your behavior, it’s just not welcome.. By your own admission, you told a customer you installed an aftermarket fuse and you did NOT.. HOOEY George.. You’ve cost people money.. I think it’s time to send you the BILL, GEORGE.

<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

1. I’ve seen Slow Blow fuses/circuit breaker on the AC into to power supply (4. - 15. amp)

2. A Fast Blow on the bias circuit (.5 - 2. amp) of a valve amp for valve/circuit protection.

3. 2. - 4. amp Fast Blow on a + rail in a SS amp or the filament side of a valve amp.

Number 1 is fire protection. Period. That is the reason for the fuse on the AC line into the PS, it stop over current and fires. It’s normally a Slow Blow for filter cap charge. I don’t care what it’s plugged into it protect whatever it’s plugged into, NOT the other way around..

Number 2 and 3 are valve and circuit protection for the "piece" of gear, normally a fast blow and a lower value .5 - 3. amp fuse or so. THIS is to protect GEAR always after the units Power Supply..

A Cary V12r has 3 types of protection 1 for fire protection AC in. S.B.
1 for the tube filament transformer. F.B.
2 for left/right (bias) output valve protection. F.B.

They have protection inside the transformers too. I’ve taken a few apart, just most people don’t know how to fix a plate transformer or take it apart for that matter.. As long as you can work around the potting if it has it.. If it not potted it’s easy to look and fix if you know how to hunt up the short.. Sniff and visual test goes a long ways..

Regards
The last thing you want to do with a touchy topic like this is post a couple hundred words of poorly translated word salad. Because even with perfectly pristine prose such as mine haters still find ways of twisting it to fit their predetermined narrative. With poorly processed Goolag translated word salad they can have a field day. And nothing you can say to stop them because the truth is that whole thing says next to nothing anyway. I only hit a few points. The whole thing is garbage.

I'm sorry people understand electricity so poorly they don't even know what a fuse is, or does, or why. Have yet to see the part of electricity they do understand. "Lethal voltage!" is about the extent of it. Not that it matters. Don't need to understand a thing, except that you put one of these fuses in and you better be prepared to have your mind blown. 

Say whatever you want. These things work.
@oldhvy - George doesn’t believe in streaming either… just let the guy fade out into obsolescence on his own terms, right before our very eyes…
Well it's pretty simple. Fuse sellers and or what ever else is sold it is NOT ok for George to slam a product. He doesn't even use aftermarket fuses. If he would say "clean, inspect, and replace old fuses with what the manufacture recommends", and STOP it would be fine.

BUT he goes on to call names and infer someone is being FORCED to purchase something that is somehow HIS business.. That's the real problem.. It's not his GD business. BUT he's costing other people MONEY.

Their prices were already WAY to high, you don't have to buy it. I DON'T

BUT to actively tell people NOT to BUY someone else's product..

GOOD BY George.. Enough is enough.. At least they were gouging and YOU or who EVER knew it.. He acts like it's HIS business to ruin other peoples business.. 
I pasted the end caps of my yellow fuse with PPT Total Contact this afternoon.

I played my reference recordings for a couple of hours after doing the pasting. I’m hearing micro details in recordings I’ve played hundreds of times over the years like never before. The low-level articulation in the female voice is stunning.

As TC users know, it takes time, even weeks to sound its best. I’m going to order another Yellow fuse ... this time for the ARC REF-75se.

Frank

PS: Mucho Kudos to the lovely lady in the Northeast. :=))
"...there is an arrow on the fuse tube." So what! All AC voltage/current is unidirectional! 
"...you better be prepared to have your mind blown." Warning: Do not eat the brown acid!
#oldhvymec

Thank you. I couldn’t have put that better myself. 
What do you think Lee DeForest would say about fuses? I bet at least half of you people here are ignorant of his achievement! Instead we have the likes of millercarbon raving away!
And now the Chinese see the dollar signs! Ten cent fuses selling for a hundred bucks! Westerners are indeed crazy!
Post removed 
The above post that was removed was posted by Georgie. Maybe he's catching on that he's overstayed his welcome. We can only hope.

Frank


Oh! ok, seeing you addressed me personally, you need something to whinge about, here ya go!!


There are plenty of the correct forums for you to visit
https://www.google.com/search?q=snake+oil+forums&oq=snake+oil+forums&aqs=chrome..69i57.7881j...

https://www.google.com/search?q=voodoo+forums&oq=voodoo+forums&aqs=chrome..69i57.3710j0j15&a...

To those "non technical" members that are interested, do not listen to fusers, listen to the techs of this industry that design the audio products you have.
AND YOU WON"T SEE THEM ON THREADS LIKE THIS AGREEING WITH WHAT THESE FUSERS SAY IT WILL DO FOR THE SOUND, EVER!!! LET ALONE BEING DIRECTIONAL!!!!!
Just clean and tighten your fuse holder and re-new your fuse (if old) with a good quality 50cent Bussman, Littlefuse or similar.
As with "many switch-on surges" they do deteriorate, bend, stretch and get crusty with electrolysis formations on their fusible wire elements before they give out, as these pics show of a fuse wire element ageing over time show. https://ibb.co/9NbTwqK
(even the $$$ boutique ones will age just as much also)


Sounds like gobbledy gook ad copy to me...
there is an arrow on the fuse tube." So what! All AC voltage/current is unidirectional!



In AC power lines, the waves of electromagnetic energy propagate through the space between the wires, moving from a source to a distant load, even though the electrons in the wires only move back and forth over a tiny distance.
Post removed 
jasonborurne52, Just like with George, I offered to get a fuse SENT to him. I don't even know any of the guys that sell the silly things.

I know they will send YOU the fuse and if you put it in the way the arrow point, and THEN reverse it and can't hear the difference, SEND IT BACK. There is no monetary risk. You just have to listen.
HECK you don't even have to be honest about it.
BUT I have a feeling you will hear a difference, EVEN if you don't like what you hear or want to pay for it..

Someone gave me a few SRs to try. I paid him AFTER I tried them and kept 2 orange and 3 blues. I've never blown one and the improvement when installed in the valve protection circuit of a Cary V12R was pretty eye opening. That amp and the speakers I use won't hide anything, BUT they will SHOW everything, from copper vs silver vs clad to a silly fuse change.. A Power Cable, your just throwing AWAY HiFi for mid fi. It makes that much difference on that amp. You better use a great cable..

Even a standard busman fuse treated with contact enhancers, dampening added to the tube (a dab of silicone) and clean or replace the fuse holder will change the way it sounds much more than a simple fuse swap..

Stating what you WON'T try is obvious. BUT if you've tried them you can at least say, BS I tried them and they didn't work on X, and Y. But I think I herd a difference with Z or NOT.. They did return my money without a hassle.

Try it.. BUT the 6 year old antics of calling fellow Agoners delusional or one of your OTHER quotes about ignorance or a 10 cent fuses selling for a C note. That's 2 100.00 bills, not one. I'm not impressed. We got your point. It contributes ZERO to the forums, other than the obvious. You WON'T try them. OR God forbid, you can't hear well..

George NEVER EVER tried an after market fuse.. That's hardheaded, and sure doesn't contribute, to repeat it over and over.

Try it THEN complain..:-)

Time to feed the chickens..
@jasonbourne52 

It’s not about the science, the money, its about magic, imagination, and pompous boasting. For some there’s little more…sad

@1971gto455ho,
I agree.
orgeonpappa,
I respect your opinion but I think the 1260 enhancer is even better than the PPT paste. I had a dulling in the highs with the PPT stuff, but the 1260 did not.

And, (gulp) I will say that the 1260 is actually better than the yellow fuse alone. 
Adding both brought out even more resolution, liveliness, realness, etc.

ozzy
So I’m still using an ARC SP9 mk ll, that still has the original 3/10th amp slow blow power fuse. So what would you gentlemen suggest I replace it with to make the biggest difference?

Thanks all.

JD

oldhvymec
George NEVER EVER tried an after market fuse.. That’s hardheaded, and sure doesn’t contribute, to repeat it over and over.

Try it THEN complain..:-)

Time to feed the chickens..
There’s only one answer for your dig at me

A fuse:
1: two end caps
2: short piece of fuse wire connecting the two end caps through a glass tube (that’s all she wrote).

To those "non technical" members that are interested, do not listen to fusers, listen to the techs of this industry that design the audio products you have.
AND YOU WON"T SEE THEM ON THREADS LIKE THIS AGREEING WITH THESE FUSERS, EVER!!!
Just clean and tighten your fuse holder and re-new your fuse (if old) with a good quality 50cent Bussman, Littlefuse or similar.
As with "many switch-on surges" they do deteriorate, bend, stretch and get crusty with electrolysis formations on their fusible wire elements before they give out, as these pics show of a fuse wire element ageing over time show. https://ibb.co/9NbTwqK
(even the $$$ boutique ones will age just as much also)
Cheers to those "non fusers" George
Despite posts just like the one above removed by the mods, george goes and posts the very same thing that got them removed in the first place.

@tommylion, I believe you, being the OP, can delete his abusive posts without going to the mods. 

All the best,
Nonoise
It ’s only for the non technical, has not been named to anyone personally, unlike you do, BIG DIFFERENCE!!!!
"there is an arrow on the fuse tube." So what! All AC voltage/current is unidirectional!


Uh, "unidirectional" means "in one direction". Hence the arrow.


Miller??? you know what he means, (non-directional)🤦‍♂️🤷‍♂️

AC mains changes it’s direction 60 x a second (60hz) so it’s impossible for a fuse to be directional, unless it’s behaving like a diode!!!, then your in real big trouble if it is trying to rectify the mains before the power supply transformer and then the bridge rectifiers.
Post removed 
It’s about money.   Those fuses are very profitable. 


You got that so right  mapman


A fuse:
1: two end caps
2: short piece of fuse wire connecting the two end caps through a glass tube (that’s all she wrote).

To those "non technical" members that are interested, do not listen to fusers, listen to the techs of this industry that design the audio products you have.
AND YOU WON"T SEE THEM ON THREADS LIKE THIS AGREEING WITH THESE FUSERS, EVER!!!
Just clean and tighten your fuse holder and re-new your fuse (if old) with a good quality 50cent Bussman, Littlefuse or similar.
As with "many switch-on surges" they do deteriorate, bend, stretch and get crusty with electrolysis formations on their fusible wire elements before they give out, as these pics show of a fuse wire element ageing over time show. https://ibb.co/9NbTwqK
(even the $$$ boutique ones will age just as much also)
Cheers to those "non fusers" George
All fuses are very profitable. Always have been always will be. I’ve sold a few and seen the markup. This just takes it to the nth degree.  If audiogon were a convenience store the $100 fuses would be in the checkout aisle for impulse buyers right next to the snicker bars. 
AC mains changes it’s direction 60 x a second (60hz) so it’s impossible for a fuse to be directional, unless it’s behaving like a diode!!!, then your in real big trouble if it is trying to rectify the mains before the power supply transformer and then the bridge rectifiers


What about the electromagnetic wave that travels from source to load?
Does anyone know if this company makes their own fuses or just modify an existing manufacturers fuse?
What about the electromagnetic wave that travels from source to load?

Sorry invalid only one answer to that  🤦‍♂️ that’s all she wrote
mapman19,414 posts
All fuses are very profitable. Always have been always will be. I’ve sold a few and seen the markup. This just takes it to the nth degree. If audiogon were a convenience store the $100 fuses would be in the checkout aisle for impulse buyers right next to the snicker bars.

Yep, again, a huge rort ( noun 1.INFORMAL•AUSTRALIAN a fraudulent or dishonest act or practice)
Selling a $0.50 fuse for >$150 is better than getting in on the ground floor of Afterpay when it was launched.

It’s not very often you see that kind of profit margins, especially from "back yard snake oil fuse" sellers with no overheads selling direct to the gullible with not even any middle men, save for the shillers for them here on Audiogon. (and this will only hurt Audiogon in the long run)

Go to a forum where the heavy hitters of this audio industry are, like Nelson Pass John Curl etc etc etc at diyaudio.com and see what happens to fusers over there.

Cheers George.
Perfect example of a one trick pony, always insulting other members.
He just can't help himself and will probably run afoul of the mods.