When routing outputs from a four-track USB recorder, you’ll want to consider how you plan to use your recordings and what your signal chain will look like. While you have many options to assign your outputs, if you use the Wing Rack like I do, you may want to consider using your Aux Ins, as the Wing Rack as well as the Compact, do not have these physical inputs. Regardless of where you route the outputs to, always try and keep in mind what you will be using the 4 Track USB Recorder for. Your options are just about limitless! The short video below shows how to route the 4 outputs to Aux Ins 2 & 3. THIS THING IS A BEAST!