The Sony SACS9 10” Active Subwoofer is engineered to deliver deep, impactful bass that enhances every detail of your movies, music, and gaming. Designed as the powerhouse of the Sony CS speaker lineup, it features a 10” dual-layer mica woofer diaphragm that ensures faithful sound reproduction with rich, dynamic low frequencies. Its advanced Motion Feedback technology, combined with built-in detection circuitry, minimizes distortion by correcting input signal variations for cleaner, tighter bass. With flexible controls including adjustable cutoff frequency, level adjustment, and phase switching, you can fine-tune the subwoofer to perfectly match your home theater system. Housed in a durable bass reflex enclosure with a wood cabinet and cloth grille, the SACS9 is built for both performance and longevity. Delivering up to 115W of power, this subwoofer is sold individually (one per carton) and pairs seamlessly with the Sony CS speaker range—2 SSCS3 tower speakers, 1 SSCS8 center channel, 2 SSCS5 bookshelf speakers, and 2 SSCSE Dolby Atmos-enabled speakers—for a complete 5.1.2 surround sound system that transforms your living room into a cinematic audio experience.