Hi again. Sorry, should have been clear: I have not yet purchased the XA30.5; it's likely I will as circumstances permit, but I'm still shopping. So I was reporting the advice of the manufacturer/vendor, not listening impressions.
Btw, my current amp is the Odyssey Stratos dual mono (180wpc) -- more comparable to the x150.5, I'd guess. Sounds good, but way more power than I need on the eps2s. But your room is bigger than mine, and your listening levels considerably higher.
J