Bose Acoustimass-4 is an advanced home theater speaker system that offers full, natural audio performance for greater realism from video soundtracks. Its Virtually Invisible® design blends seamlessly into any room, and its compact size makes it easy to place. The system includes an Acoustimass bass module which delivers deep, impactful bass, and three cube speakers which reproduce left, right, and center channel sound. With its advanced technologies and ease of use, the Bose Acoustimass-4 system is the perfect choice for an immersive home theater experience.