hifi tuning fuses

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woodturner-fran

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Joined 2006
#1
Right, look don't flame me alright!!

Saw some posts on my local forum with fellas talking about gettng great results from some of these audiophile fuses..... at €30 a pop!! Jesus, you wouldn't want to be blowing them!!


Anyway, interestingly, the hifi tuning ones use a little sch as a logo. Its a diode with a cap in parallel.

Anyone ever taken one of these apart and had a look whats inside?

See here:

http://www.polkaudio.com/forums/showthread.php?t=82496


Fran
 
#4
However, yet the reports I heard are good.
Click to expand...

Same with my local astrologer.

$45 a fuse. Sheesh. Is this guy related to Greg Kait? The stuff about directionality is absolutely hilarious. One thing I agree with- the snake oil peddler refers to himself as a magician. Not only is he in the business of duping people, he actually does one good trick- he makes stupid people's money disappear.
 
#9
Ooooookaaaaaayyy. I'll just step back carefully from this one.... (cue slow footsteps.now faster, door slamming and mad dash away!)


So, I can take it then that you guys all think its bunkum?

I thought the repsonses from the manufacturer was good "a good magician never tells his secrets". Gonna use that sometime.

Anyway, at €30 a pop someone is making money.

Fran
 
#12
richie00boy said:
Anything put up to the primary side of the transformer is a complete snake oil product. By the time the current has gone through a transformer, rectifier and smoothing cap bank, there will not be any noticeable difference.
Click to expand...

The only bearing on the sound which a fuse is going to have will derive from it being intermittent.

Let's say you have an analog power supply for an amp or preamp without any input filter, Y-caps or whatever -- hook up the B+ or Vcc to a spectrum analyzer. Bring a power supply, like a wall-wart for a portable phone close to the power supply line -- and le voilla -- the spiky switching transients make their way into your circuitry. It is, of course, worse when you have a motor start up, or a micro-wave oven with bad shielding.

In ham radio land we have a bit of the opposite problem -- radio energy propagating into the power line from a transmitter -- same with switching supplies.
 
#13
jackinnj said:
The only bearing on the sound which a fuse is going to have will derive from it being intermittent.

Let's say you have an analog power supply for an amp or preamp without any input filter, Y-caps or whatever -- hook up the B+ or Vcc to a spectrum analyzer. Bring a power supply, like a wall-wart for a portable phone close to the power supply line -- and le voilla -- the spiky switching transients make their way into your circuitry. It is, of course, worse when you have a motor start up, or a micro-wave oven with bad shielding.

In ham radio land we have a bit of the opposite problem -- radio energy propagating into the power line from a transmitter -- same with switching supplies.
Click to expand...


OK, I see what you're saying, but by that rationale, then power cords make absolutely no difference either. And whether you guys laugh at me or not, I do believe that they make a difference, as I have heard it reproducibly with my own ears.

There must be something to this. I don't know what it is.....

Can so many people really be fooled by just snake oil?

Fran
 
#15
OK, this is where I bow out.

Do agree that a lot of different stuff can be going on in the mind, but I'm not really in the mood for a you're wrong and I'm right kind of argument. Nothing in that for anyone.

The reason I started the thread was that I am a skeptic, but willing to be convinced. I wondered if anyone had got one of these things and opened them up to see what was in there. Has anyone tested them to see if they blow when they are meant to etc etc etc.

Fran
 
#17
16 posts and only 1 response (thanks jack) that wasn't dismissal out of hand (ignoring the posts from Fran saying he has been brow-beaten out of further inquiry)

I am skeptical about these fuses (i could see some potential real value if they replaced a speaker protection fuse) and AC cables, but won't dismiss them out of hand.

There is a seires of articles in Affordable Audio where measures are shown that show a measurable difference with different poswer cords (similar to what Jack shows).

I'm ashamed of you guys for just posting flip-offs based on nothing but your blind feelings based on no real tests instead of providing decent & useful discussion -- including ways to test for any real effect.

dave
 
#20
Here in Germany there is a certain Hi-Fi magazine that tries to convince its readers about such stuff in each of its issues. They recommend to replace circuit-breakers in the distribution box with fuse holders and silver- or gold-plated melting fuses. According to their assessment, the melting fuses have a lower inductivity, which leads to less losses in the power line, hence to more headroom, hence a better sonic performance.

A few pages later in the same issue you can read their recommendation to use power strips with built-in line filters. Line filters made with inductors increase the inductivity and filter all that dirt out, which leads to a better sound, they write.

So, we should reduce the inductance with fuses and at the same time increase the inductance with filters to achieve the best result. Isn't that the same as doing nothing? :redhot:
Except that doing nothing is cheaper, of course.
 
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