The funny thing about this original post, I just emailed Benchmark to see what they still provided for benchtests/services. Nothing was wrong with the unit. I sent my V2 into Grace when I bought it and they did a few things to it. So I thought since this is a little older I would have Benchmark look it sometime down the road.
I did not have a power supply for this when I received it. I made a battery pack for it. The battery sled had 2 black wires, one with white lines on it and terminated inside a closed plastic panel. It was not the typical red and black...positive and negative. So, I assumed the black with white was the negative, I guess I was wrong. Plugged it in and smelt something burning. I opened up the top of the ad2k and saw a burnt spot between the fuse and xlr at the FB2.
So now I have to send it in tomorrow and hope Ray at Benchmark can fix it.