Question i-nears headphones magnetic drivers

[and77man]

In-Ears headphones use magnetic dynamic drivers. If you bring the in-ears close to an electronic device that releases magnetism with a 29" CRT TV (coils, speaker) turned on, will this TV cause demagnetization or permanent loss of performance of these in-ear drivers?

 

[rjenkinsgb]

No. The external field strength is far, far too low to affect them.

 

[and77man]

What is the maximum intensity of magnetism that a 29" CRT TV emits and how much intensity would it need to damage the magnetic dynamic drivers of the In-Ears? I have KZ EDX Pro and KZ EDC Pro

 

[alec_t]

how much intensity would it need to damage the magnetic dynamic drivers of the In-Ears? I have KZ EDX Pro and KZ EDC Pro

Unless you know the magnetic coercivity of your ear-phones it's impossible to say. Good luck getting that info from the makers.

 

[rjenkinsgb]

how much intensity would it need to damage the magnetic dynamic drivers of the In-Ears? I have KZ EDX Pro and KZ EDC Pro

Nothing short of putting them in some very specialised, extremely high power degaussing or remagnetising machine, or possibly an MRI machine, would have any effect.

I've just tried a small neodymium magnet directly on an AC mains powered degausser I use for watch repair - absolutely no effect.
(Other than it launching itself off the first time; I had to hold it in place, hard!).

 

[and77man]

Are the dual magnetic dynamic drivers of these in-ears very resistant to demagnetization and magnetic losses unlike 2.5" HDDs? To demagnetize or have magnetic losses of these dual magnetic drivers of these in-ear headphones, what power would be necessary? And what power does a 29" CRT have because it has coils and speakers?

 

[alec_t]

To demagnetize or have magnetic losses of these dual magnetic drivers of these in-ear headphones, what power would be necessary?

See posts 4 and 5.

 

[Nigel Goodwin]

I'm rather suspecting he's a troll?, he's continually asking silly questions, and then arguing about the answers.

 

[Ian Rogers]

I suspect he's been here before..... Under another name perhaps?

 

[hexreader]

See reply 28 here:

https://www.eevblog.com/forum/general-computing/doubts-dvd-drive-of-pc/25/

 

[Nigel Goodwin]

See reply 28 here:

https://www.eevblog.com/forum/general-computing/doubts-dvd-drive-of-pc/25/

OK, he's had the benefit of the doubt long enough, he's gone!.