Check the listing for details. PGA2310 MUSES72320 Volume Controller Required For Front Remote Control Mill. Color: Blue, Condition: New. Listed at 26.31 USD. Note:The PGA2310 and Museums 72320 boards canWhen using a volume potentiometer, it can also be used at the current level. When GAINWhen set to 0, the gain is 0DB. Equivalent pure potentiometer. When GAINWhen set to greater than 1, it can be used at the current stage, with a gain of 3- 21DB.There is no need to set it too large, otherwise the signal will be too strong and the stage will be saturated. disposed at12DB is better.There are two ways to set GAIN. The first method is the gain of the remote control.Press the button, press 1 to cut 1 gain, the display screen has a corresponding display, the boardThe LEDs on the display will also display accordingly.The second method is to press the volume potentiometer without rotating itIt will also switch the gain of GAIN, which is very convenient