The Polk Monitor MXT12 is a powered subwoofer featuring 12” Dynamically Balanced woofer in a ported cabinet, powered by a clean and ultra-efficient 100W Class A/B amplifier delivers bass, adding more punch and impact to your favorite music, movies and video games. It is compatible with both the latest Dolby Atmos and DTS:X enabled AV receivers

T/7x is the perfect answer for the real world. It’s compact enough (and beautiful enough) to end arguments before they begin; while powerful enough to easily answer most needs and balanced enough to blend beautifully with many of the quality speakers out there and still flexible enough to work in specialty applications.