Isoclean fuses: definitely worth it


I just installed Isoclean fuses in my Naim CD5x and Nait5i. I sort of felt like I was going to the fringe by installing these but keep in mind they are right in the AC path so it made sense to me after installing a dedicated line and an "audiophile grade" AC receptacle.

I tried Buss ceramic fuses beforehand and they were just slightly better than stock.

The Isocleans, however, definitely provided a noticeable improvement over stock or Buss ceramics. In a nutshell: smoother treble, a touch more overall resolution (especially in the mids and treble) and elimination of a bit of grain and veiling. Polarity does matter. I checked a few times to verify but arrow down for my equipment was more natural (less bright) than arrow up. You may prefer the other polarity, of course. Note that they didn't affect rhythm as many products do (especially a lot of isolation devices) nor did they add any brightness (at least in the polarity I prefer).

They're not cheap for what they are ($25 per fuse) but the improvement was definitely worth $50 total investment to me.
greg7

Showing 15 responses by tbg

I would indeed say your experience may vary. I could not stand the HiFi Tuning fuses, but I had been using the IsoCleans for the last year.

Greg7, I have found no instance where an IsoClean does not improve the sound of a component greatly. This includes the five fuses in my Esoteric X-01. In the case of the IsoCleans and the HiFis, you have to get the polarity right. Put the fuse in one way, listen, and then reverse it and listen again. Choose the better sound. HiFi claim they are not directional, but they are.
And they were out a year earlier and don't look alike???? The opposite seems to be the case if there was any copying.
No doubt one can buy the HiFi Tuning fuses in Europe atg half price also. I don't know what the purpose is of this post. As with everything some don't find a component to be good and others do.
Greeni, I find no evidence that HiFi Tuning fuses won across the board, if fact the reviews have been all IsoClean and there certainly is no evidence that IsoClean marks up their products more than HiFi Tuning.
Or it is possible that he and I hear the differences and no existing scientific measure can explain it. As I have suggested there is directionality to wire also and there is a draw direction of wire. Some manufacturers go to great means to assure the direction of the wire draw is that used consistently in their wire. Micro Omega is one such company. Perhaps there is a direction to the fuse conductive element.

One final suggestion. Since I suspect that you have failed to hear the direction of a fuse, or perhaps never even tried to do so, you may merely be imagining that you hear no differences.
This is the wording of the above that I have from IsoClean. "Fuses always carry high electric current thereby causing metal fatigue. This would then adversely alter the conductivity behavior of the fuse element and hence the performance of the equipment." Notice that there is no suggestion that this is limited to IsoClean fuses. I think Greeni that for some reason, you have a vendetta against IsoClean. Why, because they cost less than HiFi Tuning fuses?
Greeni, as always YMMV applies, but I find none of the consensus you describe among my friends, most of whom do not post here.

I don't think that IsoClean is hardly unique in terms of what their home market prices are like relative to import pricing. Having a friend in Japan and another in Germany, I have repeatedly seen great price disparities. Part of this is transportation, duties, and profits for the importer/distributor.

Bear in mind that there are at least two other companies making audiophile fuses. Our experiences fall short of conclusive findings about which fuse is best across all systems and tastes. I am sure that other elements also interact with what we hear from fuses. Wall outlets, ac filtering, contact enhancements, the quality of component power supplies, and isolation all play a great role in what we hear.

Basically, forums can only serve the role of a heads up about personal experiences. I have never seen even a close approach to consensus here or on AudioAsylum on anything. I fact many would reject out-of-hand any possibility that fuses much less their direction could matter.
If you read the IsoClean literature, you would see that all fuses experience the shock of surge current. In other words, according to IsoClean, all fuses should be replaced every six months. I have no real plan to replace my fuses every six months. Like all products of products that are consumed, the manufacturer encourages quick usage. Change your rasorblades every week, change your oil every 3000 miles, etc.

Are you guys new to a capitalistic society? You should neither believe everything you read nor disbelieve everything you read. I had experience with direction of fuses being important and so far I have found that the direction IsoClean indicates for their fuses sounds best. I will, however, keep trying. I wish I knew why the direction they say is so, but it does seem to work.

HiFi Tuning fuses also have a "best" direction, but they do not tell you which is which.

Jadem6, who has to always be right? Most of us are limited to our personal experiences, and I suspect few of us would choose to buy what is second best in our judgment. We just differ in what we find best.
"replace their fuse" "Nowhere did I mention that this situation is limited to Isoclean" Huh!
Inpepinnovations, why do you persist in this nonsense? Once you have heard the impact of a better fuse or of the direction differences among fuses, then put yourself to work finding a test that would remove your doubts. By the way light objects and heavy objects fall at the same rate only in a vacuum.
Jadem6, you read the thread wrong in my opinion. There is no question that there are multiple replacement fuses that are superior to what you normally get in electronic. I have replaced fuses in 9 components thus far. Some are dramatically improved; others are less improved.

Fuse direction with all fuses often makes a great difference. IsoClean marks their fuses direction and thus far I have found them right.

All fuses get brittle with turn on surge. I have never tried replacing fuses just to see whether or not I got a sonic improvement doing so. Your expeience with a fuse lasting 35 years on your tuner may not invalidate this as you have not replace it to see whether sonics improve.

I do not know whether the IsoClean comments have validity or not, but I have much experience to suggest that their fuses offer a great improvement. I have been using some of their fuses for well over a year now with no problems. I guess I could try replacing them to see whether sonics improve, but I probably will not. I am still struggling with which products best clean cds and sacds. I have resolved to my satisfaction what is the best vinyl cleaner.
Willster, I have thus far ignored the notion of replacing the fuses each six months. I did replace one once and heard no difference. This would, of course, increase sales.

It is certainly possible the construction geometry may account for the directionality of fuses. I have many times identified what I am told is the proper direction for using IsoClean fuses, listened, and then reverse the direction and listened again. Each time the right direction sounded better. I have tried Hi-Fi Tuning fuses and found they also have direction but it is not consistent with any external indication on their fuses, such as printing.

There is one quick way to decide whether this should be of any concern to you, try reversing several of your fuses, one at a time. If you hear nothing,...

Milen007, I have only found amp manufacturers to strongly suggest using slow blow fuses as they have a strong turnon surge that might overheat a fast blow fuse and blow it.
inpep, so your first statement was not sufficiently qualified.

Certainly you would not jump to the conclusion that since you can hear no differences with fuses that no one can actually hear differences. I know the lame argument that they are subject to perceptual bias and you are not, which itself is curious.

I guess this has evolved into an argument between educators.

Norm
Willster, I don't see this thread as you do. There will always be people who do not hear the benefits of better fuses or off the direction of the fuse. There will also be differences of opinion about the best fuses. That is part of the hobby. I think you will find little consensus on anything discussed here. I am sure that Inpepin and I don't view each other as scumbags or ourselves as all knowing.