Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 620 W (nominal), 1000 watts (maximum); Frequency range: 25 - 2000 Hz; Built-in amplifier: no; Housing: yes; Enclosure type: vented; Number of speakers: 1; Dimensions: 305 mm; Additional information: complete amplifier and cable set for connecting; ...