Look at some of the posts and see what people have noted in their signatures and then go check out some websites. I like the Aperions in my theater and wouldn't hesitate to use them on the 2150. My 2150 is driving a pair of ceiling mounted Klipsch. They lack a little on the bass side but work for my application.

A lot depends on what you want: Bookshelves and a sub? Towers? Planars?

I'd consider raising your budget to $2000 per pair. Lot's of nice full range choices in that price range from Magnepan, Aperion, Klipsch and others