If you think a 12 ohm impedance throws some people off, look at the quick comparison chart for Dominance, which is coming out in January. It's user switchable, and can be set to 48 ohms. Not a typo there- FORTY EIGHT! What stinking tap do you use then? LOL.
@Ralph- not a dig at your gear, not at all (especially since I intend to buy an OTL amp in the next year), but I have a question for you. On that same comparo chart Zu has, it says some of their speaker designs suffer from "poor bass response" or only "fair" bass with OTL amplifiers. What's the rub there? What kind of speaker would make an OTL amp sound limp in the bass response? Still trying to learn about these OTL amps and how they differ from the standard transformer containing amps. One of the great mysteries of my life right now. I can take a body apart and put it back together easy, but this electronic stuff baffles me sometimes.