Summary: Type: subwoofer; Size: 30 cm (12 in.); The number of bands: 1; Power: 800 W (nominal); Sensitivity: 103 dB; Frequency range: 25 - 140 Hz; Impedance: 4 Ohm; Built-in amplifier: no; Housing: yes; Enclosure type: Band (Band-pass); Number of speakers: 2; Dimensions: 300 mm; Magnet: strontium; Magnet weight: 1417; Type of winding: double; ...