05-31-10: Clio09
These might be an even better option from the Audiokinesis line as they don't require subs:
Rhythm Prism
Very interesting. Have you heard these Clio09? Thanks for pointing them out.
The way Duke is implementing multiple subs as satellites is extremely effective in integrating the lows with the rest of the system. It is not your typical sub setup. I can't explain the technical side of it, beyond that there are four subs (optional "Swarm Bass System") that integrate far more seamlessly than any sub setup I've ever heard. It definitely requires more real estate in your listening room though, but it is highly effective.