While I agree the Plinius is the pick of the litter here, can anyone flesh out a bit where you see the shortfall in the other two? The SF is 90 db sensitive and nominally 6 ohm - it shouldn't present an overload to either the EC or the Moon. Dynaudio recommends their 1.8s be driven by as little as 30 wpc, though it is considerably less sensitive at 87 db. While neither amp provides the headroom the Plinius does here, both should provide acceptable performance based on the numbers. I don't know anything about the Gershmans (except that they're the oddest looking things...) so I can accept whatever ya'll say about them, but for the rest, I'd just like to understand why a bit better.
chas
