Front speakers and screen.  R and L speakers are tri-amped and consist of 10" woofers, 5" mids and ribbon tweeters in a D'Appolito configuration.  Below each main speaker is a sub woofer, one is for LFE and the other is the bottom end of the mains.  Center speaker is a Paradigm powered model.  There's also a powered sub for the surrounds located at the rear of the theater.  Total power is over 2000 watts.