Are you getting the same voltage at the outlet with or without the Tripplite in there? I'm thinking you are, but thought I'd better make sure. I'm kinda with PJ that this could be an issue of low voltage at the outlet creating a regulator issue in the BeePre. Can you get the voltage to come up at all if you turn off everything except the amp and preamp? That drop from 118 to 115 or 114 seems pretty big for just a couple pieces of audio gear. I wonder if there is a connection in the house wiring that is less than perfect and creating some resistance. The fact that the outside lights are on the same circuit as wall outlets is, well, it's as bad as my house! We have a furnace, washing machine, microwave and some lights on one circuit. Completely stupid, and you would think I would do something about it besides go downstairs, turn off the washer and reset the breaker every time somebody turns on the microwave the when the washer and the furnace are running.