Couldn't disagree with you more. That picture speaks a thousand words. That horn contributes 96% of the sound of that speaker, if not more. Not that Nelson Pass wasn't very careful in the selection of the driver. I'd be more than happy to research the driver and see what it is made of. As JG pointed out he has both metal and paper cone speakers that sound great.
And with all due respect, I think your analogy is off by a magnitude of 100X
