Merason DACs

I had heard of Merason DACs for a while. I decided to try the Merason Reuss. It's fed by my Innuos streamer (USB).

Wow, such an enjoyable DAC. Relaxing but without sacrificing all the audiophile attributes ;) Soundstage, Imaging etc..but more important a great tonality.

Was the Reuss released to replace the DAC1 mk1? 

Now I am wondering what the differences would be between Reuss and DAC1 mk2? Has anyone compared?

Hardly anything out there with regards to the company and lead designer. I would love to know more about Merason and their background.