Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 300 W (nominal), 600 watts (maximum); Sensitivity: 87 dB (W/m); Impedance: 2 Ohms; Housing: no; Number of speakers: 1; Dimensions: 305 mm; Resonance frequency (Fs): 30 Hz; Type of winding: double; Terminals: spring; ...