The Bose stuff is not sexy but lasts like crazy outdoors. Niles is also a well regarded brand with a solid reputation for lasting outside. JBL also has a good line.
All come in various sizes so you can scale to your space. All are reasonably efficient. None are true hifi or audiophile products but they do the job, and they will hold up in the great outdoors.
All come in various sizes so you can scale to your space. All are reasonably efficient. None are true hifi or audiophile products but they do the job, and they will hold up in the great outdoors.