I don't own either of these amps, but I DO have several Emotiva products, including the XPR-5. XPA Gen 2 makes that choice much more difficult now that the XPA-5 has 29 dB of gain vs. 32 dB for the PA5-200. The PA5 has more capacitance and the longer warranty. Emotiva/Sherbourn makes sense for me because I'm just an hour away from their HQ if I have a problem that needs fixing.
Denon AVR X7200WA, Emotiva XPR-5, Emotiva XPA-7, Sony XBR 75" 850C, Oppo BDP-103D, Roku 4.
DefTech BP7000SC (L/R), CLR3000 (C), SM55 (FH), UIW BPZ/A (SB), UIW 75 (TM).
JBL L7 (Sur), EoSone RSR 350 (RH).
PC 2.1 setup. Emotiva Stealth 6, SVS SB2000 sub, Emotiva DC-1 DAC.