Can you use the corners for left and right channels? If so, I'd run Audiophile Series seven π speakers there. If not, you might consider using a four π bass bin with the π midhorn, tweeter and crossover above that. Other choices are the Pro four π speakers, or maybe the Pro three π speakers with π subs.In the Theater Series, you could go with the same game plan - Theater six or seven π cornerhorns if possible, or three or four π bass bin with midhorn and tweeter on top. The Theater three π and four π speakers are nice speakers too, and very popular.
Lots of choices, depending on your requirement for position, size and price.