Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 250 W (nominal), 750 watts (maximum); Sensitivity: 92 dB (2.83 V/m); Frequency range: 28 - 200 Hz; Impedance: 4 Ohm; Housing: no; Number of speakers: 1; Dimensions: 300 mm; Cone material: polypropylene; Material suspension: butyl rubber; Material basket: steel; Reson ...