Pete, you conclude too quickly here.
This incredibly complex five-way design has four woofers, one lower-midrange driver, three upper-midrange drivers, and one beryllium-dome tweeter, as well two diamond-dome tweeters and two ribbon tweeters, which the listener can choose between.
They have been developed using the dCS Vivaldi.
The drivers used are:
Bass woofer - Acoustic Elegance Dipole18
Mid Woofer - Scanspeak Ellipticor mid woofer
Midrange - Scanspeak Illuminator Midrange
Dome Tweeter - Seas Excel T29D001 Tweeter : a 26mm pure Diamond dome tweeter
Ribbon Tweeter - RAAL Lazy Ribbon Tweeter
Dome Tweeter - Bliesma T34A-4 : 34mm Aluminum-Magnesium Alloy Dome Tweeter