They would provide the near perfect point source for proper imaging (if matched to an original two mike setup that no one uses in the recording industry).
Wonder what the frequency response is, especially in an apparently sealed cabinet? (I own single driver speakers, so know of the challenge to find full range/quality drivers.)
Wonder how the 11 drivers are wired?? (Series, parallel, or something crazy like Bottleneck the speakers) What would the overall resulting efficiency, average/peak impedance look like?
Wonder how the back waves are addressed. Would they all cancel each other out (if properly wired)? As cones are too thin to be acoustically transparent, the resulting backwave would come back out through the cone as most any box design.