Summary: Type: subwoofer; The number of bands: 1; Power: 750 watts (nominal), 1500 watts (maximum); Sensitivity: 99 dB; Frequency range: 25 - 2500 Hz; Housing: no; Additional information: Impedance Of 4 Ohms. The resonance frequency of 35 Hz. Cone material - cellulose TDC. Aluminium basket.; ...