A bit of history about Nagra.
The company was formed by Stefan Kudelski in the early 50s. Any film maker or remote recordist who had the ability owned a Nagra for field work. They were relatively easy to sync to cameras, a key feature. Kudelski designed his system to sync using the pilot tone approach that was common to pro cameras. Unique to Nagra was the quality and convenient size of his offerings, miniaturized by the standards of the day, unexcelled recording capability and all in a shoebox sized package (of highest quality). And... this in an open reel machine providing open reel quality while adapting providing the bells and whistles, improved through time by the developing refinement of the technology.
The brute force approach to synchronization was rendered largely obsolete by the advent of digital for all, which has also democratized location recording and every other kind of recording as well. Regardless what level you work at, there's a remote recording system for you that can lock up tight to your video or film. But none of this was so easy or compact in 1950's to early 1980s or so. There was Nagra (and Stellavox). Developments came, (SMPTE) time code being the default mechanism and has been standard protocol since for this sort of work.
The facility I worked at in San Francisco had a Nagra 4.2S and a Nagra 3 plus the associated stuff to syncronize and record (and play back) in sync and Nagra equipment was valued along with the Neumann, Sennheiser and AKG mics that were and still are stock and trade. Nagras were considered marvels of audio quality, build quality, engineering, durability and miniaturization. When I worked for Otari I discovered the same respect for Nagra among the Japanese engineers there.
Stefan Kudelski (born Polish but Swiss by choice) died a few years back and I saw little mention of it anywhere but Nagra still makes specialty recorders for pros but of course now they're digital recorders. I'm sure they are excellent. His son/family (?) owns the company as the "Kudelski Group" and I think they may be a little bigger than one might suppose.
As regards the hifi I have nothing that adds any insight as I have no interest in it especially considering the tariff.
However, their recorder looks well thought out and I would imagine performs superbly, at least the tradition is that it will. Gven who they are and where it is made, the prices aren't as high as you might think.
So, consider the other side of Nagra Here.
There are also several
Utoob videos that detail the machine's purpose and features...if you're interested.
Two sides to this coin.