The passive JBL Professional 5739 Subwoofer is the bass module featured in the 5732 ScreenArray Cinema Loudspeaker System, which provides superior coverage, maximum power handling, and uniform acoustic power output, along with extremely low distortion. The low-frequency enclosure houses two 15" vented gap cooled low-frequency transducers. The shallow profile of the JBL 5739 is ideal for minimum behind-screen depth requirements.