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In Reply to: RE: Should I use Schottky or Freds in lieu of my Vishay rectifiers? posted by banpuku on March 04, 2015 at 14:56:39
I would strongly discourage the vacuum idea. I am skeptical of the benefit with any electrostatic element. More likely one will work contaminates into the panel or damage it in some other way.
Keep the environment as clean, dust-free as possible and turn the speakers off when not in use. They cannot attract dust, etc., if they are not energized.
Follow Ups:
How do I vacuum my MartinLogan speakers?Vacuuming will be most effective if the speakers have been unplugged for six hours to twelve hours (i.e. overnight). You need not worry about the vacuum pressure damaging the "delicate" membrane. It is extraordinarily durable. Dirt and dust may be vacuumed off with a brush attachment connected to your vacuum cleaner, or you may blow them off with compressed air. When vacuuming or blowing off your panels do so to both sides, but focus the majority of your attention on the front of the panels.
My friend has been using a small shop vac with a soft brush attachment to vacuum his ESL57 panels for years. I do this to mine and yes,there is definite improvement from doing this as I've witnessed it several times with my own speakers.
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
Edits: 03/05/15
That is fine for the ML. Completely different design. It was meant to be exposed to the elements so vacuuming may be in order from time-to-time.
A Quad is a different beast. What works for one may not work for other. Taking a vacuum cleaner to a Quad panel is a recipe for disaster IMO.
Pat is using his Quads with the dust covers removed. I don't recommend this practice but it is not the end-of-the-world if one is careful using them this way. Panel life will be reduced to some degree. The best approach is turn them of when not in use. Keep the environment as dust free as possible. If one is really concerned then cover them with a large plastic bag when not in use. Leave them alone, i.e. no vacuum cleaners. Dust that accumulates around the base assembly may be carefully removed with a vacuum but keep it away from the panels.
Ken
As I have stated,my friend does this with his ESL57s every other month and I know those are more delicate than even the ESL63s I would guess.I didn't mean to take a brutal shopvac and run it up and down the panels and suck the life out of them..He just needs to take a soft gentle brush and gently vacuum some of the dust off to keep them from arcing and increase the efficiency.Since he runs them without the dust covers,I would think the dust would be bad for them.There is one quad site where they talk about using a soap and water solution. I never did that but I have heard of people doing this..
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
I can't account for what any individual might do with their speakers.
This is a bad idea. Removing the dust covers is a bad idea IMO. But some will do this to get the last bit of performance out of the speakers.
I have described earlier in this thread what one should do under these conditions if they are running their Quads without dust covers. Keep things clean and LEAVE THEM ALONE.
I agree but since the dust covers were off and he has a dusty room from the heat this time of year,how would he remove the dust?
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
I won't be vacuuming them.
Read the part down at the bottom where it talks about cleaning the ESL57s which I know are more delicate than the ES63s.
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
I think there is some misunderstanding. I have read the attached link.
This article is largely about rebuilding or servicing the original Quad. His comments in regards to cleaning/dust covers are:
'remove the bulk of the dust with a vacuum cleaner. Use a brush attachment when vacuuming the dustcovers, so as not to rip them.'
I do this sort of thing with original Quads. If the speakers are in working order and just need a cleaning, the dust covers are in intact then yes clean the panels as described. The dust cover film used on the original Quad is much heaver than the dust cover film used on the ESL-63. The film will be brittle after all these decades but if one is careful they can be cleaned.
No one should ever take a vacuum cleaner to a nude Quad panel original or ESL-63. If a Quad panel has gotten to the state it needs to be cleaned, i.e. is making noises, etc. then it needs to be replaced. There is no cleaning that will return it to proper operation.
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