Iso Clean Fuses


I just installed the Isoclean fuses in my Marantz SA-11S1 SaCd player. This player has 5 fuses inside. Turned it on and boy did it sound bad. The worst tweek I have ever tried. The highs were gone. In fact the over all volume was reduced! My heart sank. Faintly remembering the info sheet says these fuses have a direction to them, I had hope. Out comes the player from the stand. Fuses pointed in the other direction, now towards tha front of the player. Back in the stand, all connections remade. When i turned off the amp I left the volume at the same level. Power on. Hurray! SET magic sound restored. The crystal clear mids are there and the delicate highs have returned.
These fuses are supposed to be placed following the direction of current. I do not know if I have each circuit fused correctly as I do not have a diagram of the current flow. But in the Marantz the fuse arrow sounds better pointing to the front versus all pointing towards the rear.
So if you try an Isoclean fuse, try it in both directions before deciding if it helps or not.
David Pritchard
128x128davidpritchard
Bicycle man,

Put one in your amp and tranform your sound. The amp makes the most difference. I have one in my cdp and pre as well. I really hope you don't have a lot invested in your system , the musical enjoyment you are missing out on for a measly $39 bucks is quite entertaining.
Now leave Bicycle man alone, he seems quite content, as do we who have upgraded our fuses. Investment is a good point, if someone only spent $20 on zipcord for speaker cable, they'll think it total lunacy to spend $40 on a fuse.
Remember the saying, you can sometimes learn by observing those that can't.
I must point out that the "thin cheap" wire in a fuse is that way for a reason. A fuse is SUPPOSED to blow when its current rating is exceeded. You could put a big hefty gold-plated wire in a glass tube, but it wouldn't be a fuse. As for directional characteristics...remember that audiophilia is a religion, and all things are possible.
I put my 39 bucks towards things like cartridges, tubes, and coupling caps that I upgrade.

I prefer to put my money into my system where it makes sense from an engineering and electronics standpoint to do so. I do not listen to marketing rhetoric. I prefer to do the research myself and make an educated decision about the changes I make to my system.

Some of you have a derogatory tone in your response to my postings on this topic. Understandable -- you have plunked down a lot of money relative to the part you bought. It sounds to me, however, like the same arguments I heard from bozos who tweaked their systems with specially "treated" black plastic zip ties and used specially "treated" black plastic tweezers peddled for a lot of money by some audio "guru", or who bought the, again, specially "treated" Tice clock and refused to return it because their egos did not let them. Obviously their ears were better than mine; that is why I could not hear the difference. And, I did not love music as much as they did. Of course, don't forget that they did not actually listen to music; they only listened to the sound their system was making.
One thing I like about this hobby shows in this thread, everyone appoints themselves an expert, and objects to anything they don't have first hand knowledge of. Pretty amazing....
Bicycleman, I could shoot holes through your second paragraph and beginning of third, well,most of it. But you're resigned to your beliefs, so no need. I'm not remotely derogatory, unless you'd be a certain party who posts on here.
Like I said, if you were here, I could show you in the time it took to swap fuses the difference. I have no idea what system you have at home or what you are used to listening to/for, but, anyone can hear this difference, for the better I might add, not all changes are for the better in the long run. No rhetoric, no overpriced gizmo or snake oil. (I do serve great appetizers at my listening parties, though.) and lots of listening, and laughs...
Loosen up a bit, you're starting to sound like Julian Hirsh.