Summary: Type: subwoofer; Size: 20 cm (8 in.); The number of bands: 1; Power: 200 W (nominal), 400 watts (maximum); Sensitivity: 84 dB (W/m); Frequency range: 40 - 250 Hz; Impedance: 4 Ohm; Housing: no; Recommended housing: closed box, vented; Number of speakers: 1; Dimensions: 200 mm; Cone material: polypropylene; Material suspension: foamed p ...