Quote Originally Posted by Forane12 View Post
Not very promising Mine is number 00184 and sure could not be updated... But it s a good DAC, you can use a Linux Rpi for an endpoint and the drivers are Ok. I just had a MicroRendu and it worked right away and improved sound quality quite a lot.
No help available from M2TECH. There is no firmware update so it's game over.

Decided I like the sound so much that I'm going to try and pick up an old laptop and run Linux on it.

That was M2TECH's suggestion