Now, the SPL Series establishes a new benchmark for advanced performance and value through Velodynes exclusive Dynamic Driver Control System (DDCS). This exclusive circuitry automatically and seamlessly controls every aspect of the subwoofers operation, allowing the SPL Series subs to deliver stunning performance while assuring complete safety and dependability. In addition, the SPL Series Subwoofers provide outstanding operational flexibility for use in any Home Theater or audio system. Their high style, front-firing enclosure design means that they can be used conventionally in any room, or just as easily be incorporated into custom installations. Perhaps youve always wanted Velodyne sound quality. Now, thanks to the SPL Series Subwoofers, you can have Velodyne performance and enjoy Velodyne value, too.