brombo wrote:
So Chris1973 what is it? Is the width of the horn constant?
The width is mostly constant, except for right at the throat.
The drawing hasn't been edited. The actual image in the drawing will constist of 10 layers with the throat opening throught the baffle to the front of the driver, which will be 7.5" x the 1" throat opening you can see in the dwg. Then on either side there will be 3 more layers of almost identical profile with the throat section across the baffle sealed. This creates the slot boundary on either side of the 7.5 inches.
I'll post the other image if you need it to visualize.
So at only one location, right near the beginning of the throat, the width of the horn does change from 7.5" to 12".
On the outside of the 16 layers, is two solid panels on either side that enclose the horn. 20 layers width altogether= 15" finished width.