The LAESW free-standing (non-installed), powered subwoofer offers the signature punch and accuracy of JBL bass with a sophisticated modern look and can be used to reinforce the performance of in-wall and In-Ceiling installed speaker systems. This powered subwoofer incorporates a high-performance Transducer and built-in amplifier that delivers the powerful and dynamic low-frequency performance that makes film soundtracks and music come alive. Place unobtrusively behind furnishings to provide a high-impact, low-frequency acoustic foundation that completes the home theater listening experience. Adjustable phase, crossover, and individual volume controls allow the subwoofer to be matched to a wide range of listening rooms and systems.