hey Songsoffreedom and Tim, its my understanding having owned a MME that if you turn the gain knobs all the way down to the left, at which time they click into a locked position, then the preamp function in inactivated and the unit then operates purely as an ad converter just like the AD1000 does, I could be mistaken about this but I think I am correct, and there sure are a lot of people running a nice preamp in front of their MiniMe's to have its preamp function on as well