Size of appearance 320(W)x610(H)x245(D)mmx2 Frequency Response 50~20KHz Sensitivity 500mv SNR >60db Total in harmony wave distortion 0.1% Sound of ways is separated degree >40db Rated power 80w x 2 (8 ohm) Impedance of loudspeaker 4 ohm Speaker (10″+2.5″+2.5″)x2 Voltage of the power AC 220V 50Hz