SB15P is the recommended subwoofer companion for the 108P and 112P self powered enclosures, lowering the system operating range down to 40Hz. contains a 15-inch direct radiating LF transducer integrated into a compact bass-reflex tuned enclosure. Featuring optimal size, frequency, and tuning ratios, the SB15P combines the advantages of a self-powered enclosure with the addition of onboard DSP control. The integrated 15-inch transducer provides exceptional power handling and cone excursion capabilities with the added benefits of low thermal compression and reduced distortion. The integrated amplification and DSP module ensures optimum driver protection while allowing the enclosure to deliver an exceptionally high SPL level.