Edgewound...JBL Pro Authorized...since 1988
Upland Loudspeaker Service, Upland, CA
We just used plain old screwdrivers at JBL, nothing fancy.
I used a Geber multi tool screwdriver as it is stainless steal which is much less attracted to magnets with no problems.
I have taken one apart and the screws are corroded so there were some particles floating around in there. Also the foam is bad on the back cover it flattens out as I touch it and is falling apart. Is the foam necessary?
I have cleaned up the screws and just need to replace or remove the foam. If the foam is important does it actually touch the diaphragm, or just come close?
The diaphragm looks perfect and no cracks when held up to light.
I cleaned the gap with double sided tape and blew it out with compressed canned air.
Hope I am doing it right.
zzmagwheels,
Sounds like you're doing just great!!! (I never thought to use a Gerber "stainless steel" multi tool! Brilliant!)
Call JBL PRO for new foam, or shout out to EdgeWound. He is recone station and probably has more info than I.
Let us know of your progress. There is no greater way to truly appreciate the JBL world than to climb on in and see how it is made!
Good luck!
Scott.
[Hope I am doing it right.[/quote]
One step above: "Two Tin Cans and a String!"
Longtime Alaskan Low-Fi Guy - E=MC² ±3db
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