'ANDSOME IN THE SUMMER..'ORIBBLE IN THE WINTER. Barney Milne
Cambridge Audio CXN, Seagate nas drive, Michell Gyrodec SE, SME309, Benz M2 Ruby cantilever, Denon DL103, Primare R32, Densen D20, Densen D30, Cambridge Audio 840A V2 integrated, Pioneer SX-N30AE Network Stereo Receiver, Roksan Darius speakers, Technics speakers, Canon speakers, Bastanis Dragonfly Horns, REL Storm III sub, Target R1 speaker stands, Atacama Equinox.
this is an age old discussion, which will eventually turn ugly....it normally does
'ANDSOME IN THE SUMMER..'ORIBBLE IN THE WINTER. Barney Milne
Cambridge Audio CXN, Seagate nas drive, Michell Gyrodec SE, SME309, Benz M2 Ruby cantilever, Denon DL103, Primare R32, Densen D20, Densen D30, Cambridge Audio 840A V2 integrated, Pioneer SX-N30AE Network Stereo Receiver, Roksan Darius speakers, Technics speakers, Canon speakers, Bastanis Dragonfly Horns, REL Storm III sub, Target R1 speaker stands, Atacama Equinox.
The crystal structure of metals only affects the resistive losses and is completely non-directional. Resistive losses are caused by two effects: electron scattering by electron-electron collision, and electron scattering by the crystal boundaries and dislocations. The former accounts for about 85% of the losses, the latter about 15%.
Taken to the extreme, even if the 'fuse' acted like a perfect diode so that, say, only the positive-going half of the AC sinusoid was passed, if the diode was then reversed then only the negative-going half would pass. Since the mains waveform is symmetrical, the diode effect would 'sound' the same, regardless of direction.
Barry
I didn't say it was. My comments about resistive losses in metals was in reply tp Oliver's post.
As far as I understand your fuses involve a graphene film - a monatomic graphite layer. I assume this has a linear transfer characteristic, that is it is purely resistive. Even if it is not linear, and has a diode characteristic, while this would affect the performance of anything downstream of it, the effect would not be changed by turning the fuse around.
If your fuses are intended to be directional, I would have thought the manufacturer would have marked the preferred direction on the body of the fuse. Does the manufacturer have anything to say about the directionality?
Barry
Yes they say they are directional and to follow the direction of the lettering with the path of the power. Also they have a little black dot of material in the middle of the fuse that they say not to remove. Looks a bit like velcro fabric (not hooks).
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Well your findings would seem to confirm the manufacturer's recommendation, though I would have been better if you had been unaware of the change of direction and thus remove possible 'expectation bias'.
As long as you are pleased with the results (and you are not the only one who is), then that is all that really matters.
Barry
It is impossible for anything digital to sound analogue, because it isn't analogue!
Location: Seaford UK
Posts: 1,861
I'm Dennis.
Oliva, I had both Kimber 4TC and 8TC some time ago, and which were described as directional.
Whilst I didn't try the 'wrong way', there appeared to be no structural difference at least.
There is a misconception that a signal travels in one direction from a pre to a power amp, or from a power amp to a speaker.
It does not, what is going on is only the coupling of circuits in a loop, source and load, and although "source" seems to imply that there is, as in the source of water flowing in a river, there is no overall energy going irreversibly in one direction; it is all circular flow, in a loop.
Some time ago I came across an illustration of a speaker connection including a key, some (oven) tin foil, and a paper clip in a speaker connection, shown, DB I seem to remember, not to be perceivable with and without them in circuit.
DBB tests are the way, especially to avoid placebophilia.
if you dont believe in directionality etc why didn't you put them in the other way round?
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