This preamplifier module, integrating both volume control and input selection functions, is beautifully designed to ensure excellent performance. It is equipped with the latest MUSES72320 volume control chip from Japanese manufacturer NJR. The module's SPI interface controls the internal variable resistor to adjust the volume level, and the audio signal passes through totally analog, without digital conversion. In addition, this chip ensures high dynamic range and SNR, as well as very low THD+N.

The module features 4 RCA inputs and one RCA output. Complete with volume control and input selection potentiometer, OLED display and IR remote control, the module is ready to use.