Yes, I saw a demo like that I think in Disneyland.

I was wrong about the series. Mine are the Series 2. I found the attached PDF that describes their design and even includes schematics. I have the 3-terminal version which was intended for some kind of a virtualized Bose never introduced. Have a look t that schematic. Both woofers operate across the entire frequency range. shocked

A-LFR/1000-8 & 2/500v4x2
Air Force, Freedom
had v2