amplifier
1.Stereo power 300/500/700/900/1050/1200W 2.BTL power 900/1500/2100/2700/3000/3300 3.Signal noise ratio 103/104dB
4.Input level:0.77/1.0/1.55V
5.Input Inpendance 10/20/k ohms unbalance or balance