MINe 109 wrote:
In article . com,
" wrote:

wrote:

snip stacked Quads story

A tiny fly in the ointment and request for expert
advice. A 40/50
times/minute low volume clicking comes from two of the four tweeter
panels
in the Quad. Stops as soon as electric charge or connection to the
preamp
broken.
Ludovic Mirabel

A comment after the encounter with pet rocks, correct attitude to
Islam, and the
Republican and Democrat view of the big , large world across the oceans
Apologies for trying to start an audio thread and regrets at being so
naive
as to ask for expert help in an "audio forum".
Back to pet rocks.

Sorry, when you called the story, "A tale from the early ages of hi-fi,"
I thought it a reminiscence.

I've never had a problem with my Quad 63s, but I'd guess that your
panels are dirty. I've heard one can use a vacuum cleaner on the things.
This doesn't explain why disconnecting the preamp has any effect, though.

Here's one of many Quad-related sites:

http://www.geocities.com/quad_esl63/diagnose1.html

Quote begins.

Step 5 Speaker makes ticking or fizzing noises

Connect the speaker to an amplifier with CD player and turn the volume
to normal listening level. If there is no spark visible with speaker
makes ticking or fizzing noises.

* Faulty element due to excessive leakage across the diaphragm.
Disconnect the audio leads from the loudspeaker. The loudspeaker should
be silent. This test may help to identify the faulty element.
Alternatively EHT should be disconnected from each element in turn
(remembering to disconnect it from both edges of the diaphragm) working
from the top of the loudspeaker downwards and re-checking the leakage by
means of the neon flicker rate each time.

End quote.

"Faulty element" doesn't seem like a good thing.

I've never used this kit, but there's a 'testimonial':

http://www.eraudio.com.au/ESL_Repair...ad_57_kit.html

Good luck,

Stephen

Many thanks for your interest and valuable reference that I did not
ever
come across before. Providence watches over Quads. If the noise
persisted
i'd have been tempted to order their kit and... knowing my manual
dexterity
would have ended up with a mess.
Luckoly I just disconnected the power and next morning vacuumed the
unit
thoroughly.
The noise quit, The dust covers are still off.
I continue admiring the extraordinary sound of the stacked Quads. It is

completely different from a single quad/per side and the nearest to
live
music I heard at home.
Let me know if you ever try stacking the 63.
Ludovic Mirabel