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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
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chashas1
596 posts
 
Nice. Okay, David, one quick question which I should have asked from the nice folks I bought my fuses from, it's obviously easy (for us) to tell which direction the fuse is suppose to go by hearing it, but if you were to go by arrow only, is there any way to know?
Thanks...
and be nice to bicycleman, I think he's gonna buck for one sooner or later, elartford, well, i think it spells e oldfart, and he's thinking like one...:)
inpepinnovations
134 posts
 
David, there wasn't really any point in starting this thread then. For those who believe that direction makes a difference (or even that fuses make a difference) then no need to remind them. For those who do not believe that direction nor fuses make any difference there is no danger that they will buy one. So what was the point of the original post, if not to solicite opinions on a long past sterile subject?

respectfully, Bob p.
eldartford
4,262 posts
 
Those who resort to personal attacks thereby admit that their argument is weak.
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chashas1
596 posts
 
Not I! I was only trying to be funny, totally tongue in cheek.
As I've been trying to get across, if we could get together, it would be a simple demonstration, and very decent respectful conversation, at least at my house. And if there were folks that didn't get it or nor think it be worth the change, then that would be very respectfully treated, with snacks, no less.
Why do you think people like Julian Hirsch finally got drowned out by the likes of J Gordon Holt or Harry Pearson? Because his way of thinking was finally discredited in so many ways. Look at how audio has changed.
I'm not calling anyone Julian, not anymore. But you owe it to yourself to go find out the facts.
And you're welcome to come over for a fun listen.
wig's avatar
wig
831 posts
 

Guys,

I replaced all my fuses in amp, pre and CD and it truly made a difference. These fuses are definitely directional, try playing Canon D and pay close attention to the high frequency in the right channel and reverse the fuse, you will notice reduced extension when reversed. But experiment you'll hear the difference, easy!

Wig
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