Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 450 W (nominal), 1350 watts (maximum); Built-in amplifier: yes; Housing: yes; Enclosure type: vented; Features: high voltage input; Dimensions (WxHxD): 393x359x200 mm; Number of speakers: 1; Dimensions: 305 mm; ...