The problem I experience pluging line into the camera from a mixing board, was no sound at all. I tried different combination of pluging into the mini stero port at the front of the camera and pluging into the RCA ports on the back and side of the camera, changing menu settings. But still no audio. Just wondering if I actually need a MA-100 or Beachtek device to get balanced audio into the camera or audio period from a source besides the native mic on the camera. Sorry i replyed to this late. Didn’t look like any one was gonna respond to it.