PS Audio vs NAD M12


I am new to HEA and am building out my first system.  I want a DAC as part of that system as well as a Turntable.

I have been looking at used equipment....NAD M12 with the BLU bridge and also like the PS Audio DSD programmable DAC.
The NAD does have a pre amp and is MQA compatible.  I like the idea of the PS Audio’s ability to continually upgrade the DAC.

Havent heard either system yet.  Any thoughts/opinions is much appreciated 
razorbraun
Thanks for the info...The PS Audio does sound better in terms of Tech and Warranty Support.  Wondering if anyone has experience with the sound quality of both?
Another thing about the NAD M12 that's a huge red flag IMHO is that there's no information about which D/A chip is used. The NAD website doesn't mention it, and none of the reviews mention it. It's a pig in a poke AFAIK.
razorbraun, the NAD M12 looks nice, but the sound is prolly mid-fi at best. My advice is don't waste your money,