Yeah, I have a set of UK-made B&W 802's, but was disappointed to see that Paradigm (Canadian) also moved their lower level speakers to China, from Canada.
Bryston (Canada) is still made here, and they are now making their own speakers (they merged with Axiom) here in Ontario, and they are a better value than B&W IMHO, though without the prestige.
McIntosh is, AFAIK, still made in the US, as are a few of the higher end amp manufacturers. As far as Pro AV, I think Yorkville is still made in Canada?
Yeah, HK, Denon, Onkyo, Marantz even Rotel all changed hands many times and are now just basically box store stuff owned by Samsung. Rotel is now headquartered in China, after being owned by B&W for a while (B&W changed hands, consumer audio was spun-off).
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https://en.wikipedia.org/wiki/Harman_International
It's a pretty sad state of affairs.
That said, anything that I would consider truly "high end" is still made in the West, but that's of course due to the audience. If you are dropping $250K on a set of speakers, they better not be "hencho el PRC".