Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 300 W (nominal), 800 watts (maximum); Sensitivity: 90 dB (2.83 V/m); Frequency range: 35 Hz to 500 Hz; Impedance: 4 Ohm; Housing: no; Recommended housing: closed box; Number of speakers: 1; Dimensions: 300 mm; Cone material: polypropylene; Material suspension: rubber ...