Unit Price: Output Power: 80W(30W*1+10W*5) Frequency Response: 45Hz - 18KHz Channel Crosstalk: >55dB S/N Ratio: >70dB Per Satellite Speaker: 3"full-range driver*1 Subwoofer Speaker: 5.25" Woofer*1 Product Size Subwoofer: W155*H300*D310mm Satellite Speaker: W100*H160*D105mm Packing Size: L705*W465*H310mm Packing: 2set/carton Q`TY 20′: 550 set 40′: 1140 set 40′HQ: 1320 set