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12" Rola Celestion


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Currently restoring a pair of Ditton 44's

 

https://www.stereo.net.au/forums/topic/334689-celestion-ditton-44s/?tab=comments#comment-4685101

 

The foam rubber surrounds were starting to perish and a good time to replace while I had the drivers out. I'm having some trouble removing the surrounds from the paper cones, looks like a black sealant was used and friction alone won't get it off, I tried picking with a scalpel but the cone started to delaminate. I resorted to cutting back the rubber to the edge of the cone and plan on going over the top, the new surrounds will cover so aesthetically will look fine.

 

Anyone see a problem with this sonically or know how to remove the last ring of rubber? 

 

I've only done two previous refoams and the surrounds glued directly to the metal frames, the Rola's had a cardboard gasket glued to the frame first, looked like yellow contact, what a F-in mess. I scraped it back and thinners dealt to the residue.

 

IMG_2826-compressed.thumb.jpg.a9a7a92a4e7557782142715a8e59e0b3.jpg

 

They came up clean and I plan on sticking directly to the frame.

 

IMG_2835-compressed.thumb.jpg.7211c43244309a3e7e631a0c41cdb996.jpg

 

Any ideas why the gasket is there and should I put a new one in first? 

 

Thanks Al 

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