Looks like the NS1000 from the 70”s...First use of Beryllium in speakers...I was at a Yamaha dealer meeting in Indianapolis when they unveiled them.
Unbelievable
Yamaha really made this statement:
Glossy black piano finish provides improved signal-to-noise performance
https://europe.yamaha.com/en/products/audio_visual/speaker_systems/ns-5000/index.html
I thought I would seek opportunity to hear these speakers, but now I do not think so