Designed for those who want their music sounding the best the enclosure is carefully designed to provide a rounded musical output, whilst keeping in a compact form factor. The auto sense option makes it suitable to install in factory systems with built in auto turn on technology for easy installation. Also the ARBSS (Anti Resonance Bass Support System) reduces unwanted vibration. Active enclosures greatly simplify installing a subwoofer into your vehicle by combining the subwoofer box and amplifier into one unit.