Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 300 W (nominal), 700 watts (maximum); Sensitivity: 88 dB; Impedance: 4 Ohm; Housing: no; Dimensions: 300 mm; Resonance frequency (Fs): 27 Hz; Full q (Qts): 0.561; Type of winding: double; ...