Edit: New problem posted below!! Hi, I tried doing a search, but couldn't really find any answers. I just borrowed this 4 track recorder from a friend so I can record my ideas and then send him the tape. The problem is I've never used one of these things before and I didn't get a manual. If anyone has any experience with this machine and can help me out with what I need to do that would be great. Right now, I'm planning to run out from the Recording Out on my Roland Cube 30 into the Guitar In on the Portastudio, but what do I need to set the other knobs and switches at? Do I need to "turn off" (if that makes sense) the other channels? Basically I'm just very confused... so, yeah, any help at all will be greatly appreciated.