The Celestion H1SC-9040 is a lightweight horn with a 1-inch throat exit that you can easily screw onto a compression driver. The horn features a dispersion angle of 90 x 40 degrees.
The Celestion H1SC-8050 is a lightweight horn with a 1-inch throat exit for 1-inch compression drivers. It can be screwed on to a compatible driver and has an audio dispersion of 80x50 degrees.