Summary: Type: subwoofer; The number of bands: 1; Power: 225 W (nominal), 450 watts (maximum); Sensitivity: 87 dB; Frequency range: 35 - 150 Hz; Housing: no; Additional information: 2x4 Ohms impedance. The mass of the magnet 850, Polypropylene cone with aluminium coating. Strong basket made of pressed steel, with antiresonance coating.; ...