Summary: Type: subwoofer; Size: 13 cm (5 in.); The number of bands: 1; Power: 40 W (nominal), 55 watts (maximum); Sensitivity: 85 dB (W/m); Frequency range: 75 - 5000 Hz; Impedance: 4 Ohm; Housing: no; Recommended housing: closed box, vented; Number of speakers: 1; Dimensions: 130 mm; Cone material: polypropylene; Material suspension: rubber; M ...