The Polk HTS 10 subwoofer enhances home theater and music listening with powerful deep bass. It features a long-throw Dynamic Balance 10" driver, patented Power Port technology and a state-of-the-art 200W Class D amplifier. Easily to access controls for volume, low pass filter and phase correction. Connect via LFE (unfiltered / low pass disabled) or stereo line level RCA inputs. Whether you're installing a new set of surround or ATMOS speakers, adding a second subwoofer for the ultimate home theater experience or just need more core-pounding impact from your favorite music, the HTS 10 delivers the powerful bass you crave with its long-throw 10" driver, patented Power Port technology and 200W Class D amplifier. The Power Port floor-firing design smoothly transitions air flow from the speaker into your listening area for deep, extended bass impact while minimizing turbulence, distortion and port noise. At the port tuning frequency, Power Port equipped subwoofers have 3 dB less port noise than similarly configured subwoofers without Power Port. Front-firing 10" driver with our patented Dynamic Balance technology is Klippel optimized to provide clean, clear bass, better linearity, lower distortion and greater durability. Curved edges offer a sensual yet powerful look that fits with any home decor.