I would recommend to check if Streamlined Backshop has any of the Knowles 8x12mm speakers available.
Seltech is a value-added distributor for Knowles. There was formerly the 8x12mm, 8 ohm TINY speaker (p/n 2403-260-00029), which was discontinued...
Carl, This attached version of Dumbo with an adhesive gasket is still available from Seltech. Davin
Seltech can provide the Dumbo speaker from Knowles. Contact us if interested - davin.moorman@seltech-international.com
If any support is needed for the Knowles cell phone speakers, then Seltech would be glad to help. www.seltech-international.com We are a global...
Harold, Seltech still has stock of the discontinued Sambo or Dumbo speakers from Knowles. I've also attached an example of our Sambo speaker box...