I have not read the Hifi+ article, but I suspect it relates to Devialet’s AXD initiative. Devialet announced last year that Vivid, YG Accoustic and others (unnamed) were involved.
http://designwsound.com/dwsblog/2018/10/devialet-axd/
https://hifipig.com/devialet-add-axd-tec...mplifiers/
Edit: and Estalon.
Edit 2: Fast fingers Pim beat me to it yet again.
Edit 3: and B&W
http://designwsound.com/dwsblog/2018/10/devialet-axd/
https://hifipig.com/devialet-add-axd-tec...mplifiers/
Edit: and Estalon.
Edit 2: Fast fingers Pim beat me to it yet again.
Edit 3: and B&W
1000 Pro - KEF Blade - iFi Zen Stream - Mutec REF10 - MC3+USB - Pro-Ject Signature 12