We're thrilled to introduce JBL Cinema Expansion Series of commercial theater sound solutions. Details and specifications are below. JBL Cinema Expansion SeriesPremium, Cost-Effective Sound Solutions for Small- to Midsize Theatres The Cinema Expansion Series delivers legendary JBL fidelity and performance in streamlined, competitively priced cinema sound solutions. The line, which includes JBL 3153 and 4253 3-way screen-channel loudspeakers, 3181F and 4281F subwoofers and 8102 surrounds, delivers the highest SPLs in its class, covering rooms up to 85 feet (26 m) deep and up to 40 feet (12 m) wide. The Cinema Expansion Series marries stunning sound with versatility and ease of use: Premium JBL drivers are engineered to deliver maximum output with minimal distortion, while patented JBL waveg...