So I've been GASing for an Ashdown ABM 500 for a while, and I'm heading out to investigate a used one on Craigslist. I've looked through a bunch of posts and it there seems to be some reliability issues with Ashdown amps (i.e. amps blowing up, low power output, unexpected hums) Is this related to the newer overseas made gear only, or was there a "bad year" in Ashdown production? The amp I'm looking at was made in 2001, UK made, so it's fairly early in Ashdown history. Along similar lines, are there any thoughts about Ashdowns holding up in the long run?