ATC P1 Pro amp vs. Parasound JC-5 amp

I've considered that at some point I would upgrade from my ATC P1 Pro amp to a Parasound JC-5 amp. To me both of these are in the sweet spot of their price range. I can't imagine spending more in my 9 ft by 12 ft listening room. Just curious if anyone out there have heard both and would it be a worthy upgrade? Or perhaps you have suggestions of other amps in the $6,500 price range of the JC-5? (I'd likely purchase used for $4,000 give or take) Would that money be far better spent somewhere else in my system such as a speaker upgrade?