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Demagnetizing track?

K

kl122002

Member
I just visited a hifi demo and noted the staff used a CD to perform so called "Demagnetizing track" to do the demagnetizing. The CD is Densen and I checked it is not a cheap.
The track seems something like a pure tone run across low to high frequencies within several minutes and that's it . What is it exactly ? Could it really improve the sound from a hifi unit or the whole system?
 
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Call it audiophile lore. There's as much science in this as a Santeria Ritual. Only the chicken blood has been replaced by BS.
 
I really can't tell. There are quite a number of posts from google, some say yes and some are no. Almost 50% vs 50%.
Is there any real science behind, seriously?
 
kl122002 said:
I really can't tell. There are quite a number of posts from google, some say yes and some are no. Almost 50% vs 50%.
Is there any real science behind, seriously?
Click to expand...
Seriously? I vote no. But I have a sneaking suspicion other election districts might vote differently.
 
Well, the nay-sayers would probably typically argue that either regular music should serve the same purpose or, if not, you'd need something more suitable like a demagnetising wand anyway. I tend to belong to that camp. However, in the realm of hifi it most usually doesn't really harm, if one rather wants to try the one or other mod/tweak nevertheless for oneself and see... And in this case one can easily make a CD with a "suitable" signal oneself, so if one is curious, I'd suggest to do just that and give it a try - whereas I wouldn't suggest to buy such a CD, in case it would cost more than 5 bucks.

Greetings from Munich!

Manfred / lini
 
Just run it and listen to the fabulous output a tone generator provides. If after running it your speakers still work, the magnets are still magnetized. If the demagnetizing works, then you have bad luck.
 
I am also in the snake oil camp. In the old days, new things or ideas had to be proven to work. Now days, they have to be proven that they don't work.

Since all of the technology around us is based on science, I'll stick with those kinds of known to work ideas or products.....

'ner
 
I'm confused by what is to be actually demagnetized. Do you mean this tone is to be played into a tape recorder while recording so that residual magnetism is removed from the tape head? Well no, I don't see that working as you would need a much stronger signal from a proper demagnetizing coil and also may need demagnetize other steel parts of the machine (e.g. capstan). If this does not involve tape, then this is complete nonsense.
 
What are they demagnetizing? CD players don't need demagnetizing. Reflected light doesn't cause magnetism.
 
Hi all,
my home has some water pipe work problems and so I am offline and removed my hifi system and kept for a few days without use.
I decided to do a small experiment at the same time. I borrowed a Densen CD after I returned everything in correct position.
Before the Demagnetizing track was performed, I have listened to my hifi gear for not more than 20 mins, then I played the Demagnetizing track once .
After it had completed, I played the same music again, as expected, there is no significant difference.
So I tried again, played the track 2, 3, 4, 5 times separately, I still don't notice what has changed.
 
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Not surprised @ the result. Snake oil. Yes, I know some people hear voices. Furtech is probably working hard on a $3K tin hat for them.
 
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