Okay... this is too much. My outputs came back "full blast" just before sound-check at a gig this weekend. I had just pulled the DX's volume pedal forward with my heel when it popped back to "full health". I like this (having no explanation for the behavior) even less than I liked pumping the output through a cheesy gtr pedal to pump up the signal. If anyone has any clue as to what caused this and may cause it again please clue me in!
Thanks.