Thinking about throwing my budgetary plans out the window and one of the amps I'm looking at is a used WT550. The thing is, I've been out of the scene for a while and I'm not up on the changes with some of the companies like Eden. I know they've changed ownership at least once and David Nordschow isn't with them any more. How is the quality of the new stuff like the WT550? Is it even made in the US anymore? If it isn't I'll stick with my other budget busting choice and get a used Walkabout. I *know* those are a safe bet.