I love, love, love the D'Agostino S-250. It has Plenty of power, as the power meters have never surpassed about 20 watts in my system. And its hugely musical. I do want to eventually swap in a VTL S-400 II, but the system as presently configured is so alluring that I've pretty much given up equipment upgrades and have been concentrating on the music.
I've driven the S-250 to great results, both directly with my Berkeley Alpha Reference 2 DAC, and a slightly modified Audio Research Reference 6 preamp.
I have not yet heard the Wilson Alexia 2s. But I do plan to be at Rocky Mountain Audio Fest this coming weekend in Denver. And I see at least one pair of Alexia 2s on the bill...
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