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In Reply to: RE: quick question: posted by Green Lantern on February 06, 2021 at 20:09:22
Correct. But that's only the front side pictured. The rear side should be treated as well.....and that's where the very tedious process begins. :)
However, just treating the front side will yield an audible improvement.
Olaf is still using his treated speakers many years after his silicone oil treatment and claims they are still buzz-free.
It is a terrific technique certainly worth the time/trouble.
It's too bad those turds on the Apogee forum, new and old, removed all of his posts describing the process.
Edits: 02/06/21Follow Ups:
thanks Davey, what would be tedious regarding the back side? I have the silicone, oil, syringe, tube and tire needle on the way.
Is there any loosening of the brackets involved?
Doesn't seem to be a lot of room to be jabbing a tire needle in those cracks. I wonder how folks are doing it w/o damaging the foil?
Here (from DIYaudio.com) john states shooting it on the foam itself:
Laid the speaker on its side and supported it so it would not tip.Sucked up some silicone goop and laid a nice bead over the front foam, right on top. The foam sucked up the silicone. I just kept laying more beads until the foam cavity was filled. Then did the other speaker, and let it dry for 6 hours. Then I turned it over and did the other front side... Didn't bother with the top or bottom foam...
So I guess my question would be is the objective to simply 'rebuild' the existing foam that deteriorated over time by hitting it with the silicone/oil and allowing the foam to act as a sponge?
It's more tedious doing the backside because you can't see nearly as well and you need to negotiate your syringe through the perforated back plate. A syringe with a curved needle is what I used. But, whatever you feel works for you.
You're trying to rebuild what's left of the foam remaining. The foam, if not completely gone, will act as a key to give the silicon oil something to coagulate with.
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