Ground Zero GZRB 16SPL 163.02 EUR Available BUY Article Number: GZRB 16SPL Share Information Reviews Subwoofer Diameter16.5 cm / 6.50″ Power Handling350/700 Watts Impedance2x 2 Ohms Net Volume8.5 L / 0.30 cu.ft. Dimensions 410 x 280 x 130 mm.