Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 1200 W (nominal), 2400 watts (maximum); Sensitivity: 90 dB; Impedance: 2 Ohms; Housing: no; Resonance frequency (Fs): 37 Hz; Full q (Qts): 0.3363; Type of winding: double; ...