ALLO Capacitance Multiplier / Power Filter (Stand Alone), Noise Reducer for Volt or Amp, make electricity is clean for no background noise

The ALLO CM board is for filtering the electricity coming from the power supply to the VOLT. Electricity can have much noise. So if it goes to the amplifer, you will hear noise. in the music So the CM board is like a power filter. You plug the power supply inside, then there is extra cable from CM to VOLT. So the electricity is clean.