Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 300 W (nominal), 1000 watts (maximum); Sensitivity: 87 dB (W/m); Frequency range: 30 - 1000 Hz; Impedance: 3.4 Ohm; Housing: no; Number of speakers: 1; Dimensions: 305 mm; Cone material: polypropylene; Material suspension: rubber; Magnet: ferrite; Resonance frequency ...