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