Once the MDAC's shipped I'd be happy to help with any PSU upgrade advice, MDAC's will make a great platform to work with... If the sound quality of the CD/DQ & CDQ are anything to go by...
Sorry, I still don't understand
The MDAC will not be the same quality as the DQ etc because of the power supplies - fine with that. But to what extent can the MDAC be brought close to the DQ through improvements to the PSU? Is it still handicapped by poorer internal PSUs?
Ultimately I can't say I'm that bothered by spending a few hundred quid, I just want the design that is the most optimised and best sounding!