How do they do that? There are only 2 ways for a speaker to move air.
The size of the driver.
Theirs look to be very small, hence maybe why marketing is hiding the actual size?
The excursion of the driver.
What do you think the excursion is for these drivers, 2" or maybe 3" ?
No matter how much power you have, at some real point you either blow the voicecoil out
of any reasonable linear portion of the magnet structure or blow it out of it's suspension.
I've heard it all before, unreasonable performace claims. Have them send one to Amir at ASR or Gene at Audioholics. Lets put em on the bench and see how much balls they really have.