Russound R8DT Subwoofer Woofer. Magnet type: neodymium. Peak Music Power Output (PMPO): 60 W, Frequency range: 60 - 16000 Hz, Impedance: 8 Ом. Weight: 9000 g. Type: Floor-standing speakers, Dimensions (WxDxH): 308 x 339 x 360 mm, Audio output: Full-range speaker pass-through