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Old 16th August 2012, 11:12 PM   #11
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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 ...
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Old 17th October 2012, 01:31 AM   #12
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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?!
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Old 17th October 2012, 02:19 AM   #13
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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:
or barrier discharge:
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 02:21 AM.
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Old 17th October 2012, 02:51 PM   #14
tyu is offline tyu  United States
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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
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