It's European invasion


Gryphon, Ypsilon, Lansche, Kharma, Focal, Jadis, Mastersound, Swiss electronics etc. At the highest or close to it level they are overtaking big time. Yes, there are still competitive American brands, but it appears that Europeans are gaining more and more ground. With the help of Japanese - TechDas, Technics, Wavac, Kondo Japan, others.
What is going on, I wonder ?
inna
It's global, really. We 'Americans' (I'm assuming you meant the US - though I happily include North and South, Arctic to Antarctic) remain innovative as do all other people across our planet. I believe this is a very good thing.
Follow the engineers...

The fruit simply reflects the vision and strategy of a company. With a few exceptions, the engineering brawn in the North American high-end companies dissipated after the 1990s. As you mentioned, in Europe and the Far East (including China and South Korea) the effort continues
Our calculations, our topologies, our quantum mechanics, our price structures! OHhhhhhhh! Where did we go wrong? 😥