Also needs to be out in the country, I want it quiet outside in the evenings. I'd like a small outdoor amphitheater.

I love music outside, I've got a pair of NSB arrays with 9 tweeters mounted at sitting height for my back deck. The NSB.s and tweeters are mounted on the face, and the 2 sides are mounted to the face with 4 ft. long hinges. They are dipoles, and the hinges allow for constant tweaking. They need a subwoofer to cover from about 200Hz, I've got a couple of RS 180's I'm not using and a small plate amp that I'll use to cover the bottom end. Should be a neat little project coming up before the summer.