Bert & Johannes have sent the information on this page:

Supertweeter Platon on top of the DMT 15 MK II.
Below the schematic diagram of the xover filter connected to the Platon:

Below the xover filter of the DMTs:

The actual xover filters photo:

Tin-foil capacitor version:

painted cabinet:

© PE1MMK Hans Hilberink, and Bert & Johannes, last update: 05-05-2006.