pass XA 60.5 vs Pass X250.5

I am just getting familiar with the XA 30.5 amp in a active system for mid and high frequency reproduction. What would fellow Pass labs owners think to be the best option for 110Hz down, the XA60.5 or the X250.5. The speaker recommended 120W into 2 drivers,i.e. as its sold there are 2x60 watt amps one for each bass driver. I think the XA series is more expensive but in terms of sonic performance do you'll envisage that there is a significant difference between these two amps for my application.
Thanks