Features: 1) Output power: 30W + 10W x 5 2) Impedance: 4Ω 3) Frequency response: 55Hz - 150Hz, 150Hz - 18kHz 4) S/N: 75dB 5) Subwoofer dimensions (L x W x H): 300 x 150 x 260mm 6) Satellite dimensions (L x W x H): 100 x 85 x 140mm Outer packing: 2sets/ctn Carton dimensions (L x W x H): 695 x 415 x 440mm Carton volume: 0.127cbm N.W.: 19.6kg G.W.: 22.6kg