They farmed their manufacture to China at some point; Sales dropped. It's my understanding that they've now moved manufacture to the US ( it was in the UK; That's where my ABM500 was built).
The MIC amps were not well regarded (big shock). I have to say that I never played one, just my 11 year old ABM. And that I have kept it all this time should indicate what I think of it.
I haven't spoken with Ashdown for a while, but I certainly did when the US Series was being implemented and integrated, and unless something has changed in the last several months, the only Ashdown products made in the US were the "US Series" cabinets. I dont have any insider information but I'm pretty sure the "US Series" experiment bit the dust though, and I'm
also pretty sure that the ABM series and the tube stuff is still UK manufactured and the rest is Asian built.
I
know the tube amps are UK; always have been. Early on there was talk of them being produced in the US, but only from persons who somehow read that factoid into the Ashdown marketing materials (
not accidental IMO...

).
It wouldn't be a surprise for me to learn that they have started manufacturing the
entire line in Asia; it's pretty hard to be market competitive with a transistor amp built in the UK or US anymore. Lower "revenue per pound", (even more expensive to ship than to build in extreme cases) items like speaker cabs can make more sense to manufacture closer to the end users, like the "US Series" speaker project, but the lower Asian production/importing costs and economy of scale can easily tip the bottom line in favor of Asian production.
For those who really think it matters
where their amp was built, it will be marked on the unit, but I think most people are
much more interested in buying an amp
cheap than in where it was made.
Ive personally had good luck with the ABM series gear I have used over the years, and like the tone. I still use an ABM RPM-1 to drive my transistor rig on the rare occasions that I use it.