Summary: Type: subwoofer; Size: 30 cm (12 inch); The number of bands: 1; Power: 300 W (nominal), 1800 watts (maximum); Frequency range: 30 - 1000 Hz; Impedance: 4 Ohm; Case: no; The number of speakers: 1; Dimensions: 300 mm; Cone material: polypropylene; Magnet: ferrite; The type of winding: double; ...