Missouri State University in Springfield, MO has two SD-10s and one 1998ish STH-10. Certainly not state of the art, but they get the job done and done well. That STH-10, especially, can be heard across campus. The SD-10s are both on the oldest part of campus and you can stand in one place and see both clearly.
Springfield itself is 2001 country. Oddly enough, none have battery back-up. Supposedly the 2001s replaced a system of T-Bolts an 2T22s, but they were long gone before I got here.