I think this is it? (Good thing I had German in high school!)
Sold 1 new polydome K (several available) for the Infinity Kappa series 6, 7, 8 and 9, part numbers 902-3075 and 902-5793, also suitable for the following point "I" series, Kappa 6.1 i, Kappa 7.1 i, kappa 8.1 i, kappa 9.1 i kappa 6.2 i, kappa 7.2 i, kappa 8.2 i, kappa 9.2 i, the membrane is NEW, the housing is used.
moderator edit: seller's contact info from ebay removed is sold only the membrane, you would have to send me their housing incl. Membrane, the conversion is free, the return also, the price refers to the membrane which is the same for all polydomes is in spite of other optics of the housing or decorative ring outside, that is, they keep their old coils, which have no wear and retain their infinity sound. The membrane is like the original polypropylene, it should hold about 20-25 years and provide listening pleasure. The old polydomes gradually lose their plasticizers and harden. As a result, the polydome loses the tweeter connection and sounds aggressive, as well as it loses noticeable space, which is the more tragic than in the frequency range, the human ear has the greatest sensitivity and locating sharpness.
IMPORTANT! Please send me your old Dome completely and TOUCH-FREE to what the membrane concerns, the conversion for you is already included in the offer price and you would have to send me only their Dome well packaged! You do not need to disassemble anything on your own and perhaps risk the risk of destruction. The coils are needed for the conversion because they are re-equipped with the Domen to return to them! Pack the dome so that no pressure on the old membrane can come, neither from above nor from the side. mfg someone who knows and nothing of silicone membranes which are too heavy holds and foreign chassis would not install in his kappa such as. the black stuff from Denmark with 8 ohms instead of the original domes under 4 ohms. In the measurement logs they see a multi-measurement of different domes and a measurement of a new old stock against one with a new membrane. You realize that the new membrane is within the factory tolerance.
IMPORTANT!!! Please send me your old Dome completely, the conversion for them is already included in the offer price and they would have to send me their Dome packed well packed !!! You do not need to disassemble anything yourself and maybe destroy the coils. These are needed for the conversion as they return to their new equipped with the Domen. Pack the dome in such a way that no pressure can come on the old membrane, neither from above nor from the side. mfg someone who knows and nothing of silicone membranes which are too heavy holds and foreign chassis would not install in his kappa.