+1 for Volti. I was pretty impressed with those when I heard them, and I really enjoyed talking with the designer and builder (Greg Roberts) at Lone Star Audio Fest. He managed to make those speakers sound very good in a small hotel room, and they are clearly meant to shine in a larger space. I would reach out to them and you'll likely get to speak with Greg directly. If you're into high efficiency horns in that price range, I think just hearing his input directly would be worth your time, even if you go a different way.
