@soix - not knowing PRaT in audio components may be a blessing - one less thing to detract from the music
I find this interesting. I'm with soix as I too have difficulty pinning down the understanding of PRaT in audio components.
I understand what is musical drive, but cannot put into words. I understand when orchestra timing is off, but when it focuses music beauty and drive take over. I get the gist of @atmasphere in that increasing component sonic errors leads away from emotional engagement towards the analytical as we're wired to single out things that don't fit.
When evaluating components, I do the usual test tracks: own familiar songs, test cd songs, acoustical instrument reproduction, etc. specifically paying attention to voices, piano, violin, bass definition, etc. When choosing a component, I choose one that "resonates" with me (sounds great top to bottom, pulls me into the music) like Magico, MBL, YG. Likely PRaT is a subcomponent of "resonates" that I simply haven't isolated separately