Detail：
  　　
Features
※ three frequency selectable mono / stereo divide;
※ TRS balanced inputs and outputs;
※ Selectable stereo subwoofer output or left and right channel low-frequency output plus overclocking;
※ Each channel has a high 40Hz filter (low cut);
※ Each channel has a beginning X10 range selection, power control and execute bits switching selection;
※ stepping potentiometer type selection, so adjustment is more accurate;