Millennium Park in Chicago features the Jay Pritzker pavillion. This is the new home for Grant Park Music festival which is the nation’s only remaining free, outdoor classical music series. The system includes separate E-coustic Systems processing in the pavillion that augments the natural reflected energy provided by the surfaces of the stage enclosure. The trellis was designed by Frank Gehry specifically to support sound reinforcement and E-coustic Sytems loudspeakers. Optimum amounts of direct, reflected and reverberant energy are delivered to 4000 in fixed seats and 7000 seated on the great lawn, providing the impact, richness, and envelopment of a premier concert hall.