The holy grail of these drivers is a flat power response combined with the transient capabilities enabled by the lack of hysteresis inherent in all inductor and capacitor based crossovers. Sonically, that is an immediacy and clarity traditonal speakers simply cannot achieve. The flip side is this is very difficult to accomplish due to the competing requirements.
Whizzer cone drivers
According to my expirience as speaker designer , i am wondering why so many companies still making loudspeakers with wizzer cone drivers and so many guys fall in love with this products choosing small paper cone as a additonal tweeter prefering high quality tweeter made from top quality components.Yes, no crossover ( capacitor) , but still ?