Opinions on Nuprime vs D-sonic vs Red Dragon vs Class D Audio

Does anyone know if Red Dragon is still a viable company?  Seems they were MIA even back in early 2019 as scratcha said. 
They seem to be sold out of everything.
I have emailed them with no response for a few days.  I am considering buying a used one and don't know if there is any support to speak of from them. 
 

Does anyone know if Red Dragon is still a viable company?

Still dealing by the looks of these two links.

If you are lucky enough to get hold of the $800 M500 monoblocks or S500 stereo, which are always sold out.
They are basically the same poweramp/s except for the $$$$ chassis as the $10k Rowland Continuum II
That use Pascal "stroked" Sanway Chinese Class-D Pro-2 modules

https://www.reddragonaudio.com/collections/amplifiers/products/s500?variant=969867425
https://www.reddragonaudio.com/collections/amplifiers/products/m500-mkii?variant=248192058

From 6Moons
Jeff Rowland have been one of Pascal’s earliest customers among high-end manufacturers to release a few ‘entry-level’ products based on that module like the bridgeable 525 stereo power amp and the integrated Continuum S2. Red Dragon’s S500 beats with the same heart in a less high-end chassis

Cheers George

@evo_no_revo I'll be selling my black S500 in August if you are interested.

No word on the company, last I heard they were working on a new generation but that was some time ago. Amp is built like a tank.