From a synergy standpoint stick with PSAUDIO. Mono blocks will always best any stereo amp. I have DSJ Jr dac and PSAUDIO M700 mono blocks with Zu Audio speakers and love it. Give Steve a call at highperformancestereo.com and he will likely be able to get you a great price and answer any questions.
https://www.highperformancestereo.com
https://www.highperformancestereo.com