Summary: Type: subwoofer; Size: 38 cm (15 in.); The number of bands: 1; Power: 2000 W (nominal); Sensitivity: 90 dB (W/m); Impedance: 0.5 W; Housing: no; Number of speakers: 1; Dimensions: 391 mm; Resonance frequency (Fs): 37 Hz; Full q (Qts): 0.49; Equivalent volume (Vas): 58 l; ...