Original high quality active Jamo subwoofer The heavy subwoofer gives a fundamental bass sound feeling. Just little signs of use. Carefully shipped 8" Long-Throw Woofer 200W Amplifier Auto On/Off Level, Phase, and Cutoff Controls JAS200B Manufacturer # 85234 Woofer 8" (203mm) Long-Throw Woofer Frequency Response 36-150Hz Impedance 22 kOhms Dimensions 303 x 230 x 430mm Weight 11 kg The SUB 200 from Jamo is a high-quality subwoofer that adds a heavy bass kick to your home stereo or multi-channel speaker system. The wooden bass-reflex cabinet houses an 8" long-throw woofer and a powerful 200W amplifier to deliver strong bass at frequencies down to 36Hz. Level, phase, and cutoff controls allow you to adjust the subwoofer's sonic response to match your satellite speakers and your listening environment. The SUB 200 automatically turns itself on and off, based on when an audio signal is present. Discreet wooden bass-reflex cabinet 8" long-throw woofer and a powerful 200W amplifier deliver strong bass at frequencies as low as 36Hz Level, phase, and cutoff controls allow you to adjust the subwoofer's sonic response to match your satellite speakers and your listening environment Automatic on/off function, based on audio signal presence Blue led indicator in the front logo.