Au-408 is a powerful system reinforcement device. it has a independent adjustment output level 1 in 8 out/2 input 4 out, full balance input, output function, which can cooperate with your system equipment to connect different requirements. therefore, the level of the output signal is consistent with the input signal, and it can reduce and suppress various interference and surge impacts in the power grid to ensure that the stability and reliability of the system equipment in the signal processing.