Summary: Type: subwoofer; Size: 25 cm (10 in.); The number of bands: 1; Power: 150 W (nominal), 500 W (maximum); Sensitivity: 88 dB (W/m); Frequency range: 30 - 1000 Hz; Impedance: 4 Ohm; Housing: no; Number of speakers: 1; Dimensions: 250 mm; Mounting depth: 139 mm; The installation hole: 235 mm; ...