Output Power: 115W(40W*+15W*5) Frequency Response: 30Hz - 20KHz Channel Crosstalk: >50dB S/N Ratio: >70dB Speaker System: 6.5"woofer on main unit 1x3"tweeter+2x3"drivers on front satellite units 1x1.5"tweeter+1x3"drivers on rear satellite units 1x1.5"tweeter+2x3"drivers on centre satellite units Product Size Subwoofer: L200*W360 *H330mm Satellite Speaker: L130*W135*H195mm front speaker: L105XW111XH805mm CEN:L355XW130XH110mm Packing Size: L888*W458*H415mm Packing: 1set/carton Q`TY 20′: 165set 40′: 342set 40′HQ: 400set