Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 1000 W (nominal), 2000 watts (maximum); Sensitivity: 87 dB; Impedance: 4 Ohm; Built-in amplifier: no; Housing: yes; Enclosure type: Band (Band-pass); Dimensions (WxHxD): 835x385x480 mm; Number of speakers: 2; Dimensions: 300 mm; Type of winding: double; Terminals: s ...