Planning to get a Wiim Pro and plan to connect it directly to a power amp, I know the Wiim pro has a digital volume control, but since i would be connecting it directly to a power amp (Rotel RB 1090) , I am afraid that there would be a possibility that the remote or app used to control the power amp might go berzerk and go full volume on the power amp. I would like to insert a potentiometer in between the Wiim and the power amp, what value for the pot should I use? The power amp has an input impedance of 33k ohms, sensitivity is 1.8v. I know the Wimm pro's analog output is 2.0v