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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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Showing 3 responses by rodman99999

rodman99999
6,032 posts
 
What you consider, "too much" to pay, or what effort you're willing to expend for improved sound, is directly proportionate to you love for music and your ability to hear. Then, of course, there are always the Julian Hirsch disciples(everything sounds the same).
rodman99999
6,032 posts
 
How many of you nay-sayers have actually tried the Hi-Fi Tuning, IsoClean or Furutech fuses again? Surely you're not simply offering unsubstantiated, empty opinions? I've upgraded every power supply and signal path in my audio chain with OS-CONs, FREDs, bulk foil resistors, polystyrene/polypropylene caps. Selected cables, interconnects and NOS tubes, with care, towards the most transparency possible, and done the same for many aurally pleased clients over the years. When I tried the Hi-Fi Tuning fuses in my Cary monoblock power amps, there was an obvious and quite audible improvement. The technology to actually observe electrons, and their behavior within the crystaline structures of various metals, must have escaped the professors at Case Institute. I don't remember that being presented during any of our courses.
rodman99999
6,032 posts
 
I'm not a "believer", I'm a listener. I've made a living with my ears for over 30 years. We(Those of us with ears and resolving systems, that have ACTUALLY tried the fuses) have the experience of actually hearing the differences that these fuses make. On what exactly are your opinions based? The founder of Linn(Ivor Tiefenbrun) said it best: "If you haven't heard it, you have no opinion!" One of my favorite quotes. The rest of you can have all the vapid, opinionated "last words" you want. Seems you can't help yourselves.
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