I've had an Edirol R-09 for several years now. I use it for informal, practice recordings primarily. Generally, I had to set the input between 13 and 20. Recently, it suddenly required the input to be maxed out at 30 and the recording is still soft. Note: I do not use external mics. My problem is unrelated to the input jack problems that many have reported.
Does anyone have an idea what caused this?