How do they sound?
You can't hold these to the same rules as you would a true 5.1 speaker system.
These are two enclosures, using many tiny drivers, that by using psychoacoustic trickery are trying to take the place of five separate, better/properly placed individual speakers. They are essentially a two piece sound bar.
By looking at the specs of these oddities, one can see they have no bottom end to begin with. Naturally, the crossover will be high. Also, the reality of the matter is that you really don't have a center or surrounds so you really can't question the Audyssey setting too much on these.
Of course, you can always override Audyssey if you think you can do any better.