The two passive and one active driver with built in crossover improves your listening experience by providing low frequency support creating a balanced, clear, and dynamic sound. The Model SUB offers deep base for your ART by Tivoli Audio system. Connect the model Sub with any stereo combination of ART by Tivoli Audio speakers and enjoy room-filling 2.1 wireless audio for your home. The Model SUB was designed to match the ART collection. Wrapped in the same Gabriel Fabrics and matching wood veneers, the Model SUB will blend into your dcor. he unique slim design allows the Model SUB to be displayed prominently on the floor, mounted on the wall via the included keyholes, or laid flat on the floor to arrange the best bass response for your system. The Model SUB has the ability to work with your existing hi-fi system. Use the 3.5 mm line-input to connect with your current system and listen in a whole new way. Keep the Model Sub up to date by connecting it to your Wi-Fi network via the Tivoli Audio Wireless app and run over air updates.