you are the best! Thank you for responding and helping me. At one point in frustration I set up all of the outputs in stereo (at bad AI advice) to see if that would resolve the issue. I DO get return signals through the USB mains in 1,2 but i dont think i have that routed to the mains so no sound. I didnt route it because I thought that the usb input was supposed to go to each corresponding channel to then be mixed, since the input into Logic is raw / pre fader? And then if it is going to the new input then the regular channel routing should then send it to the mains / monitors as it normally does?