I’m quite sure, that not everyone is familiar with the Transformer Diamond Reference Speakers from Germany, that uses unique ceramic chassis and in flagship version the ceramic drivers with 30mm diamond tweeter…
Principle: 3-way bass reflex
Ceramic chassis (optional diamond tweeter) Tweeter: 30 mm Dome Midrange: 18 cm Cone Impedance curve: Min. 6.8 ohms, Max. 7.2 ohms
Electrical phase deviation: <3 bi-wiring="" connections:="" i="" rhodium="" terminals="" urutech="">
Finish: Acrylic high gloss black, (glossy white optional) Dimensions (W / H / D in cm): 30/110/55
Accessories included: spikes
