Detail：
  　　Technical Parameters 
※ stereo inputs: each six-way branch output level can be adjusted individually.
※ mono input: a 12-way branch output level can be adjusted individually.
※ Input impedance: 50KΩ Balanced 25KΩ Unbalanced
※ Maximum Input impedance: 21dBu Balanced and Unbalanced
※ Output impedance: 220Ω Unbalanced
※ Frequency Response: 0.35Hz-220KHz + 0 / -3dB
※ SNR:> + 100dBu Unweighted 22Hz ~ 22KHz
※ harmonic distortion: 0.04% Typically @ + 4dBu 1KHz Gain 1