If OP wants a new Amp, I say Buckeye Hypex or Purifi Amps FTW.
Shouldn't change anything, and I haven't taken the time to look for the electrical behavior of the Personas OP is using...
All I can say is that I am quite happy with my own Hypex experience thus far and am planning to add more as budget allows. I need to at least get a Stereo Amp / Dual Monoblock for my Mains before I can install my Atmos Speakers. Considering the new Hypex NCX500s for this, or d@mn the torpedos and do another DIY Hypex build when the Nilai 500 modules and matching power supplies become available in June.