2 Channel via high end DAC vs room correction in Processor

In a properly treated room (for HT and music) would you think it would sound better running digital source to a high end DAC / PRE right to amp or run through the same room via the HT processor that has decent room correction?  What gives better results?
A true high-end stereo preamp would trump a prepro for me especially in a well-treated room. Preamps matter big time IME.  Add in a good DAC on top of it and it’s an even easier decision. 
I am looking at the matrix mini Pro 3 as DAC / Pre amp and wire straight to amp..can swap cables when to HT.