Headphones + Mixamp + System Volume + Game volume

Right now I have my system volume on half, my headphones on max, game volume on full, and mix amp volume on about 25% 


Am I doing this right? or should the system volume be high and the mixamp volume be high and the headphones be low I DON'T KNOW

Im not positive and could be full of it but i believe to prevent power issues and blown out speakers the headset/speaker volume should be what is on the lowest setting....