While Davip's description will work, it's not the method described in the manual nor is real good practice for an insert (unless you needed to take many tracks through one insert). According to the manual, when you assign an insert, you can choose i/o for that physical insert. The i/o needs to match. So... if you send your insert from out 2, it needs to come in via out 2 as well. Then the insert will automatically bring in the insert. The method I mention above, keeps the insert pre-fader, like it's intended and doesn't use an additional aux input for play back. This will also keep in with the other inserts (i.e plugs). All else fails, read your manual... it's pretty clear in there. -t