Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 400 W (nominal), 800 watts (maximum); Sensitivity: 86 dB (W/m); Frequency range: 43 - 250 Hz; Impedance: 2 Ohms; Housing: no; Recommended housing: closed box, vented; Number of speakers: 1; Dimensions: 300 mm; Cone material: pressed paper reinforced with Kevlar; Mater ...