Integrated for Vandersteen 2ce sigII

((((Any idea what happened and how to go about fixing it?)))

  You have to locate where in your electronics its coming from
 start with swapping rca wires at your CD player and then your pre amp,then amp etc
 make sure you have no splices or any wires shorting together.
 then check out simple things like Balance control intermittent switches on pre amp etc.
 swap in or try another back up amp. 

I swapped out the amp and everything worked fine. I started the process switching cables,swapping out speakers,checked cables and yes even balance controls. 

Rogue Audio, outperforms ARC integrated amps, for the record.

Jafant- that's a bold statement would you care to elaborate? 
  Anyone have any idea what might have happened to my pm8004? And if it would be worth servicing thanks.

I've heard and owned Rogue.  I've heard and owned ARC
integrated (VSI60)
I could not disagree with jafant more if I tried......