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
hi JD, all that you get for "literature" that comes with the HF Tuning fuses is a little piece of paper that has a name of the company and web site address. No instruction manual. No mention of fuse degradation. This sounds weird to me that the Isoclean fuses need to be replaced every 6 months. Glad I didn't get them and went with HiFi Tuning instead.
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.
I'd like to try some Isocleans or HiFi Tunings ... but I need a 12.5A fuse for my amp (5x20mm) and seem to be out of luck. An Isoclean supplier wrote to say that Isoclean would soon offer a 12A at 5.20mm (slow-blow), but the amp manufacturer can't seem to tell me if it would be okay to use the 12A.

Suggestions or similar experience?
I looked at the list of fuses HiFi Tuning makes(the little paper that came with fuses I odrdered) and there is no N/A next to a 12.5A fuse. So give cable company a call to verify they make this fuse. (800)fatwyre
good luck
Geoffkait, you are welcome.

Now here is a simple explanation from Isoclean itself of why replacement every now and then is necessary. I quote this from an audio article written by an oriental reviewer living in Seattle. I can actually read their language and translate them for you. There are of course sematic differences which cannot be 100% translated so bear with me.

"Because of the few samples on hand, I haven't directly compare AHP against Isoclean, but both are effective. According to the properitor Mr. So of Isoclean, their fuse have limited life, and even if not bow up, overtime the sonics with degrade, the primary reason being that the thin conductor core within cannot withstand overtime the micro heating from prolonged passing of current; or the instaneous heating up upon switching on of the equipment will cause change in the thin conductor core, resulting in the fuse losing its initial glamour and softening in sonics. Based on my observation over the months, the effect described is in fact true. Looks like we have to replace our fuse from time to time to keep up with the sonics".