Acoustic Audio by Goldwood PSW Powered Subs are designed with your unique style in mind! Our sleek design and unmatched sound make it a necessary addition to any home theater. The elegant black ash wood finish is subtle and complements most home audio systems, seamlessly. Immerse yourself in the action of fast-paced movies or sports, raise the impact of your favorite TV shows and add full-bodied bass to your favorite tunes! PSW Subs feature a built-in high efficiency amplifier which effortlessly drives the down firing subwoofer for a clean, crisp bass sound. Our woofer utilizes a long excursion cone for deep, accurate response. Combining just the right driver materials, speaker geometry and enclosure construction techniques has a synergistic effect that produces cleaner, clearer low frequency sound. The MDF bass-reflex enclosure is internally braced and damped to eliminate internal standing waves and other performance-robbing resonances. This unique configuration uses a specially tuned and directed port to more efficiently produce maximum bass impact. The high and low inputs allow you to use any receiver or processor and the easily accessible line and speaker level inputs & speaker level outputs allow simple connection to most systems. PSW Subs outperform the competition with durable, resonance-free dynamic balance driver materials that stay stiff and move fast. You will experience deep, musical low frequencies and thrilling effects with Acoustic Audio by Goldwood's superior system blending.