Detail：
  　　Technical Parameters
※ three frequency channels available menu / stereo divide
※ TRS balanced inputs and outputs
※ Selectable stereo left and right channel subwoofer output type low-frequency output plus overclocking
※ Each channel features a 40Hz high filter (low-frequency switching)
※ Each channel has a beginning X10 range selection, power control and execute bits switching selection
※ stepping potentiometer type selection, so a more accurate adjustment
※ 24dB / Oct Lin Kwitz-Riley filter with professional calibration of
※ filtering methods: 18dB / Octave
※ Input: Balanced XLR and Unbalanced 1/4 "
※ Output impedance: 220Ω
※ Input impedance: 20KΩ Unbalanced and 40KΩ Balanced
※ Frequency Response: 20Hz ~ 25KHz, + / - 1dB
※ SNR:> - 90dB
※ harmonic distortion: 0.01%