I posted before the same question re my HDX900… although it seems to be the same for all of them.And one soundguy told me this is always the way with Pana camera,s ??? going directly into the camera.
If I go direct into the camera,the sound dial on the camera side has to be way down.. not even near 40%.
Usually I get sound from the sound persons mixer.. no problem and the dial in the (normal) position..
So I,d never noticed it till recently.. better than low I guess,was a bit unnerving setting the level so low.