Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 300 W (nominal); Sensitivity: 89 dB; Frequency range: 20 - 2500 Hz; Impedance: 4 Ohm; Housing: no; Dimensions: 300 mm; Cone material: polypropylene; Material basket: steel; Type of winding: double; ...