Summary: Type: subwoofer; The number of bands: 1; Power: 400 watts (maximum); Sensitivity: 88 dB; Frequency range: 30 600 Hz; Housing: no; Additional information: Voice coil diameter: 50 mm, 4-Ohm Impedance. The resonance frequency of 33 Hz. The equivalent acoustic volume: 40 L. the Weight of the magnet 1160,; ...