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Are the electrostatic headphones /amplifiers dangerous?

post #1 of 40
Thread Starter 
Hello everyone:
 
I don't know if this thread goes to this forum, if not I'd like the moderator moves it to the right place, anyway I have something important to ask those who have experience with electrostatic headphones and amplifiers.

I have no experience with them and recently my first purchase have been a Stax SR - 009, for which I am still looking for amplification - I have an Octave V40SE integrated amplifier in  mint condition I want to sell or trade by an electrostatic amplifier - but that is not the issue.


I have read some opinions about the danger that can lead to the headphones and electrostatic amplifiers and the recommendation to keep away of them.

What's your opinion and experience about this question?
Are there any reason to be worried or there are just opinions without basis and perhaps motivated by ignorance or interested? Any recommendations for new users?

Thank you

Best regards
post #2 of 40

Dont open up the electrostatic amplifier and touch the electronics inside... otherwise don't wire one of the drivers with a negative bias, wash your hair in salt water, and put the cans on your wet head?  I don't know, I'm really trying here... I have no idea how this could be dangerous

post #3 of 40

High voltages are dangerous.

post #4 of 40

and yet no one in their right mind avoided having a TV in their homes before flat panels were invented... because theyre not dangerous products

 

Quote:
Originally Posted by wuwhere View Post

High voltages are dangerous.

post #5 of 40
Quote:
Originally Posted by El_Doug View Post

and yet no one in their right mind avoided having a TV in their homes before flat panels were invented... because theyre not dangerous products

 

 

They were not told, if only they knew eek.gif  But seriously, one does not poke around inside an amplifier even when it is off. There are big capacitors inside that stores charges. The most dangerous thing I do with my tube amps is biasing the output tubes while on. I use a small all metal screwdriver to adjust the trim pots knowing that if I drop it, it would cause a short.

post #6 of 40
Don't use your tongue to confirm caps have been discharged.
post #7 of 40
Thread Starter 
Quote:
Originally Posted by Happy Camper View Post

Don't use your tongue to confirm caps have been discharged.

 

Has someone any more constructive contribution that touching something with the tongue or wash the hair with salt and water?

 

I hope that it's not a compromised question...

 

I like jokes but in addition to them I'd like any coherent answer also


Edited by Sahara - 9/24/12 at 9:48pm
post #8 of 40
Short answer, no unless you are talking about your wallet. If you are careless enough to use the phones with wet hair you won't die, but your investment will.
post #9 of 40

I've never read or heard of anybody getting electrocuted by their amplifier since I started this hobby and I started with speakers. I've never owned electrostatic speakers (never did because they don't bass but I had Apogee ribbon speakers).

post #10 of 40
Thread Starter 

Clarkmc2:

No. I'm talking about health terms -shocks, high voltages etc- When  I decided to buy the SR-009 I forgot the wallet.

 

Wet hair ,salt and water should be a problem. I live two miles away of one of the best European beaches..smily_headphones1.gif

in the last tropical paradise of the continent.

 

What humidity porcentage is required to be at risk?

Are you talking seriously?basshead.gif
 

post #11 of 40
Thread Starter 
Quote:
Originally Posted by wuwhere View Post

I've never read or heard of anybody getting electrocuted by their amplifier since I started this hobby and I started with speakers. I've never owned electrostatic speakers (never did because they don't bass but I had Apogee ribbon speakers).


Thank you, wuwhere. I'm looking for the comments I've read before about this question but I can't find them. I've read thousend posts the last 2/3 weeks

 

I think there are not many people with electrostatics herebiggrin.gif


Edited by Sahara - 9/24/12 at 10:15pm
post #12 of 40

There are hundreds of us, we just don't know how to respond since no one ever gets hurt. 

 

Honestly, it sounds like you've already made up your mind that you don't want 'stats.  That's fine, it's your choice. 

 

Quote:
Originally Posted by Sahara View Post


Thank you, wuwhere. I'm looking for the comments I've read before about this question but I can't find them. I've read thousend posts the last 2/3 weeks

 

I think there are not many people with electrostatics herebiggrin.gif

post #13 of 40
Quote:
Originally Posted by Sahara View Post


Thank you, wuwhere. I'm looking for the comments I've read before about this question but I can't find them. I've read thousend posts the last 2/3 weeks

 

I think there are not many people with electrostatics herebiggrin.gif

 

I think I understand your concern now. ESL speakers are different, they are not next to your skin. Now, ESL headphones work the same way, high voltages on the stators, next to your skin.

 

http://www.sanderssoundsystems.com/technical-white-papers/esl-speaker-wp

post #14 of 40
Quote:
Originally Posted by Sahara View Post

Clarkmc2:
No. I'm talking about health terms -shocks, high voltages etc- When  I decided to buy the SR-009 I forgot the wallet.

Wet hair ,salt and water should be a problem. I live two miles away of one of the best European beaches..smily_headphones1.gif
in the last tropical paradise of the continent.

What humidity porcentage is required to be at risk?
Are you talking seriously?basshead.gif

 

Yes, I'm serious.

The Stax site gives the maximum humidity for my phones - the SR-007mk2 - as 90% non condensing. Yours should be similar, I would think. The risk is to the phones, not to you.

Wet hair is a separate issue. You would be safe but the headphones would likely be destroyed for all practical purposes.
Edited by Clarkmc2 - 9/24/12 at 10:34pm
post #15 of 40

BTW, those voltages coming out of the transformers are AC, after all the voltages coming out from your amplifier is AC. Here's a diagram of the Jecklin ESL hp. Notice that there are covers after the stators so that one does not get electrocuted.

 

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