The Bose Sub2 powered subwoofer combines with almost any portable PA and delivers low-end performance down to 37 Hz. It has a unique 10 18 high-excursion neodymium RaceTrack driver that allows for an ultra-slim enclosure and dleivers a performance that rivals a traditional 15 woofer without the cumbersome size. Its the more powerful subwoofer option for the Bose L1 Pro32 system, combining seamlessly via single-cable SubMatch connectivity.