Post Script to all this.
I took the amp to a shop for repairs. The techs (2 of them both experienced) could not find an issue. Told me everything in the amp is "up to spec". Gave it back to me no charge. Get it home hook it up and the hum is still there. Only now it is constant. I call Rogue. They say try the dip switch in the voltage regulator. I found it and switched it from H to L and now everything is fine. Hum is gone amp runs nice and quiet. If it happens again. I'll send it off to Rogue.
Thanks again to everyone for your input.