Type Active Subwoofer Box Diameter 30 cm / 12″ Amplifier power (RMS/max.) 250 / 400 Watt Impedance 2x 2 Ohms Net volume 70 L / 2.47 cu.ft. Subwoofer GZIW 300 Abmessungen (B x H x T1/T2) 460 x 370 x 400/310 mm / 18.11 x 14.57 x 15.75/12.20″