Michael
First off thank you. I created everything from scratch. I did quite a bit of research in the beginning on the specific drivers I had which are the JBL E130 and the radian compression drivers for the horns. I was able to fortunately find all of the parameters online looking through archives for volumes of the boxes etc. and then I had to calculate those into the design I had in mind. The horns are based on westlake horns but I had to adjust them a little for what I wanted after talking to a few different horn builders, since I wanted wide dispersion but also wanted to keep the horns outside of the box. If you have questions I can certainly help. Also I have drawings for the horns that I created as well.