Model Subwoofer Box Diameter 25 cm / 10″ Power Handling (RMS) 250 Watts Impedance 4 Ohms Net Volume 26 L / 0.92 cu.ft. Subwoofer GZIW 25 Dimensions (W x H x D1/D2) 440 x 320 x 360/285 mm / 17.32″ x 12.60″ x 14.17″/11.22″