Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 300 W (nominal), 600 watts (maximum); Sensitivity: 87 dB; Frequency range: 20 Hz to 500 Hz; Impedance: 2 Ohms; Housing: no; Number of speakers: 1; Dimensions: 300 mm; Cone material: composite; Material suspension: butyl rubber; Resonance frequency (Fs): 32 Hz; Full q ...