I second the Plinius. I'm using it to run Revel m-20s. These aren't the most efficient speakers.... 87db I think, but the Plinius runs them quite well. I've seen these amps here on AA for 2k or less. One caveat, my system is in a small to medium-sized room, so keep that in mind. But the amp has a lot of power, and I can play these speakers as loud as I want without any trouble..... except hearing loss.
Hope that helps,
Dan
Hope that helps,
Dan