Item pictured is item https://offerup.com/redirect/?o=cmVjZWl2ZWQud29ya3M= great adult owned and lightly listened too because wife doesn’t like the heavy bass. With a hard-hitting 400-watt amplifier and two 10" woofers, this high-performance sub moves a lot of air for deep bass you can feel. And Polk's exclusive PowerPort® technology reinforces the bass without adding audible distortion. Polk has paid close attention to the details to make sure the bass stays pure and musical. The heavy-duty cabinet features extensive internal bracings to eliminate sound-muddying vibrations. Adjustable feet provide steady placement on carpeted and hardwood floors. And, the real wood finish gives the subwoofer a handsome look. bass-reflex design video-shielded 400-watt RMS amplifier dual 10" woofers Dynamic Balance® drivers are laser-tested to help eliminate resonance points heavy-duty driver suspension for better stability and low-frequency definition frequency response 30-125 Hz (-3dB) continuously variable 50-140 Hz low-pass crossover line-level input and output LFE input speaker-level inputs speaker-level outputs with selectable full-range or 80 Hz high-pass crossover phase control front-mounted volume control bass boost auto on/off real wood veneer 16-7/8"W x 16-3/4"H x 19-3/8"D