So Oliver you see, the Titanium tweeter diaphragms from are highly recommended, not only from me.
The pictures were taken in my small living room. I am just occupied to get the squawker Tianium diaphragms working.
I looked at my friends Cornwall III crossover and indeed I saw that Klipsch uses for the squawker a band pass.
No more autoformer, only a 30 Ohm resistor in series adding to the squawker DC resistance.