< p> 30cm Powered Active Subwoofer with Class-D built-In Amplifier (1300 W) Single Voice Coil.< br> < br> Full specifications:< br> < br> < br> Size 30 cm< br> Maximum power 1300 W< br> Nominal input power 350 W< br> Frequency response 20 - 130< br> Sensitivity 113 dB< br> Woofer material Pulp< br> Voice Coil type Copper Round Wire 4-Layer< br> Voice Coil bobbin type Polyimide< br> Magnets Ferrite< br> Weight 10.3 kg< /p>
