I have the 1212m also. I have a two channel preamp, channel 1 from preamp connects to the left 1/4 inch input of the e-mu, channel 2 preamp out goes into the e-mu right input. Each input, left and right, can be panned to center in the mixdown in Cubasis. Just remember to choose stereo for the track you record so you get both channels from your preamp.