Peripheral device,signal divider,good value for money,pro speaker ,power audio Frequency response : 20Hz-20KhzNoise (unweighted) >100dbPower supply: 220v/AC/50HZInput Impedance: 40kΩ/20kΩoutput Impedance: 200Ω/100ΩPower Consumpion: 10VADimension : 482*43*155mmNet weight: 2.7kg Peripheral device signal divider SM-480