Impedance:8Ω Nom Power: 15W Max Power: 25W Sensitivity :90dB Freq Range: 120Hz ～20KHz Driver Unit:Woofer:5.25〞Tweeter:0.5〞 Dimensions(HxWxD)mm::75X192X280 Outer packing dimension:520mmX300mmX215mm Q'TY:6PCS N.W: 6.3KG G.W: 8.5KG