Ozone and ESLs - Page 2 - diyAudio
Go Back   Home > Forums > Loudspeakers > Planars & Exotics

Planars & Exotics ESL's, planars, and alternative technologies

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 16th August 2012, 10:12 PM   #11
diyAudio Member
 
Join Date: Nov 2005
Default Ozone ...

Ozone will also destroy the rubber parts of your audio system - belts in turntables and tape machines, etc ...

I do not think the Quad ESL or the Quad 63 have voltages high enough to be ozone sources ...
  Reply With Quote
Old 17th October 2012, 12:31 AM   #12
diyAudio Member
 
Andersonix's Avatar
 
Join Date: Jan 2004
Location: Silicon Valley, California
The smell is unmistakable(?), and now I can get it faintly again using another amp with only 41V rails. What does it mean?!
  Reply With Quote
Old 17th October 2012, 01:19 AM   #13
diyAudio Member
 
alexberg's Avatar
 
Join Date: Oct 2009
Quote:
Originally Posted by Andersonix View Post
The smell is unmistakable(?), and now I can get it faintly again using another amp with only 41V rails. What does it mean?!
You either have broken/covered with dust isolator and patial:
http://upload.wikimedia.org/wikipedi...upkeep.svg.png
or barrier discharge:
http://upload.wikimedia.org/wikipedi.../800px-DBD.png
The first one would occur without audio signal applied - old TV sets and computer monitors generate ozone due to HV leakage
The second one is due to displacement current, AC only (like the one through the capacitor).
Both types will erode whatever material nearby so it's quite easy to spot the bad spot (sorry, can't help it). Both will make things worse over time.
You need to identify the source and fix it: cleaning, resorting isolators etc.
As others mentioned before energize your speakers in absolute darkness. Take time to adapt your vision: it may be very dim.
With and without signal applied.
Barrier discharge is kinda pinkish and does produce unmistakable crackling sound, partial discharge is rather bluish and has it's own unmistakable whistling sound, very subtle.
In really bad cases one can get spark discharge - easiest to identify due to loudness.
Hope this help
P.S. I would check the web to see how these phenomenas look and sound if you have never seen it before...

Last edited by alexberg; 17th October 2012 at 01:21 AM.
  Reply With Quote
Old 17th October 2012, 01:51 PM   #14
tyu is offline tyu  United States
diyAudio Member
 
Join Date: Jul 2009
Thnks for info on Ozone....have a lot of ESLs here never seen or smellet it...an dont care too....goodluck
  Reply With Quote
Old 10th January 2015, 10:02 PM   #15
diyAudio Member
 
Andersonix's Avatar
 
Join Date: Jan 2004
Location: Silicon Valley, California
Update: ML Ascenti also smells of ozone when playing loudly. So far, all the ML's I've smelled have smelled of ozone...
  Reply With Quote
Old 10th January 2015, 10:20 PM   #16
diyAudio Member
 
Join Date: Nov 2005
The presence of ozone after ESL high drive suggests corona discharge / the dielectric breaking down on excursion peaks causing ionization of air. Probably not possible without pretty severe measurable distortion.
  Reply With Quote
Old 10th January 2015, 11:16 PM   #17
diyAudio Member
 
DeltaStar's Avatar
 
Join Date: Mar 2012
Location: Handel SK
What exactly does ozone smell like, I have some stats here, and sometimes the air smells like electrical smell of some sort, but can't find the source of it. Concerned as my lungs are in bad shape as is.
  Reply With Quote
Old 10th January 2015, 11:54 PM   #18
diyAudio Member
 
Join Date: Jan 2008
Location: Toronto and Delray Beach, FL
Quote:
Originally Posted by DeltaStar View Post
What exactly does ozone smell like, I have some stats here, and sometimes the air smells like electrical smell of some sort, but can't find the source of it. Concerned as my lungs are in bad shape as is.
Wow, a hard question to answer with words. Doesn't seem to be an issue for others and you seem to be on the trail of it, so maybe that's the first answer. A clean, after the thunderstorm smell but not quite like chlorine... dunno. Most other "electrical" smells resemble burning stuff, eh.

As the thread OP says, you can smell it at concentrations FAR below the threshold deemed dangerous by our duly authorized authorities, at least last time I checked or had any reason to doubt their authority. That's a big problem: how can you judge when the concentration of ozone is getting close to 10X the level you first could detect it at????

Ben
__________________
Dayton-Wright ESLs (north of 110Hz), mixed-bass 1955 AR1W (28-110), and giant OB using 1960's Stephens woofer (18-110); Behringer DSP. HiFi aspirations since 1956
  Reply With Quote
Old 12th January 2015, 09:24 PM   #19
Pyramid is offline Pyramid  United States
diyAudio Member
 
Pyramid's Avatar
 
Join Date: May 2006
Location: Behind the Cheddar Curtain
What about ultrasonic record cleaners? I have a KLAudio cleaner and I get a distinct ozone like smell when I use it.
  Reply With Quote
Old 12th January 2015, 11:20 PM   #20
diyAudio Member
 
bolserst's Avatar
 
Join Date: Jun 2005
Location: Fort Worth, Texas
Quote:
Originally Posted by bentoronto View Post
...A clean, after the thunderstorm smell but not quite like chlorine...
There was some discussion in another thread that a lot of the smell we generally associate with ozone is actually due to negative ions(ie not harmful)
ESL Bias Supply Polarity
ESL Bias Supply Polarity

Quote:
...how can you judge when the concentration of ozone is getting close to 10X the level you first could detect it at?
We used to use ozone detection cards back in the lab...had different sections of the card that would change colors at different concentration levels.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Izotope Ozone MP anyone using this plug in ? lduarte1973 PC Based 0 18th April 2011 06:06 PM
Ribbon ESLs? Spasticteapot Planars & Exotics 2 1st March 2007 10:52 PM
What to look for in ESLs edjosh23 Planars & Exotics 15 16th June 2006 03:59 PM
Ribbon v ESLs which is better rick57 Planars & Exotics 21 11th August 2005 10:23 PM
ESLs jouch Planars & Exotics 4 4th May 2004 09:35 AM


New To Site? Need Help?

All times are GMT. The time now is 05:25 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2