No, the Sharp can't detect a difference, and the PA IS mono. I just run from the effect loop, mono-to-stereo adapter to MD and have the MD record in mono. I was actually pretty amazed at the quality of recording I was able to get. 1. Y arrangement works fine. 2. I don't think the send is line level, which is why I use the mic input. This is way too hot with the Sony but I think I may be overlooking a setting. 3. Not a problem in this case. 4. The insert IS post fader. I'm aware of that take it into account. No ALC on the Sharp so if someone fools with the PA I make the compensaton on-the-fly. 5. Yeah, the halfway trick was my first thought but won't work in on this PA. In fact, Plugging into the send kills kills the main outs to speakers. This is why I use the Y...to send one leg to the MD and the other back into the PA return. Kind of a pain, but it works. I'll take your advice and see if I can dig into the menu for any settings that might affect the levels. I don't have the Sony in front of me but I seem to recall someting that allows you to set mic/line inputs within a range of high or low. Thanks for the suggestions. G.