RF-404
1.RMS: 65Wx4CH 2.Size: 410x272x68mm 3.PCB: double layer 4.Terminal: perspective 5.Packing: color 6.Heatsink: oxid black & line crack 7.Frequency response: 20-22000Hz 8.S/N: 97dB 9.T.H.D%: 0.015 10.LPF:50-250, 24dB/oct 11.HPF: 50-250 Hz 12.Input sensitivity: 0.25-6.5V