i really lucked out on a J200 awhile ago. I could never afford a new or used one. Got it, played it and was disappointed. So for the 1000s that I saved I invested about $100 in a new saddle, nuts, pins and had a tech set the truss rod, hoping to fix this problem. Nope, still dead. On a lark I mic’ed the guitar: An AKG P170 through a focusrite to Garage Band, Into the Land of Acoustic Heaven, wow! So, thinking about it as the simpleton I am, here is my theory. If you are sitting behind a guitar(playing) you really aren’t hearing it like if you were standing in front of it.