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Painted JBL Cones

L200B

AK Subscriber
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A while back I bought a pair of L88 Plus speakers. The woofer cones had been painted white. I assumed someone wanted to brighten up some dingy yellowed cones. The tweeters had been painted too, gray down to the orange ring around the cone. Who ever did it had done an extremely clean job.

A little while later I bought a pair of Heathkit AS-38 speakers with drivers manufactured by JBL. The Heathkit speakers woofers had been painted green. This is how they left the factory. Well documented.

Color aside, the paint jobs between the L88s and the Heathkits look like they were done the same way. I'm wondering if the white paint on the L88 Plus woofers could have been done in the factory?
 
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All L88s had the same 123A woofer as the L100. Both had white cones. The literature at the time called the white coating either Lansaplast. Lansiplas, or Aquaplas.
 
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Aquaplas, maybe? I know JBL did white aquaplas on some woofers and used it on lots of other transducers as well for dampening.
 
JBL did white aquaplas on L88s cones and the dust covers should be gray/black
Aquaplas is an acoustic treatment for JBL speaker cones:thmbsp:

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