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Quad Esl 2905 reliability issues?

I have owned a pair of Quad 2905 for six years problem-free. These are my favorites amongst the high end speakers I have owned so far. But lately one of the panel start to buzz and pop 30 minutes into my listening session. Does it mean that I have panel failure? I am puzzled because I am sure I did not over-drive the speaker.
mvp100

Showing 2 responses by ct0517

ct0517's avatar
ct0517
1,798 posts
 
Mvp100

What is the humidity level in the room since the noises started ?
ct0517's avatar
ct0517
1,798 posts
 
Your readings are really low (really dry)
One of my Wayne Picquet 57's a couple of years back in higher humidity started to make a crackling sound that would cycle on and off. It would make the noise for about 20 seconds and stop. And repeat.
It could be heard between songs if 5 or 6 feet from the speaker. It did not affect performance.
In talking with Ken at Electrostatic Solutions higher humidity is to be avoided. This is especially true for the 63's the most vulnerable. The 57's are very hardy compared to them. Not sure of its effect on 2905's.
Now whether the humidity being too low can also cause any adverse effects I don't know. Maybe someone else can chime in.
I keep the humidity around 50'ish or lower in winter and no symptoms anymore.
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