Wayne Parham Messages: 18788 Registered: January 2001
Illuminati (33rd Degree)
I would wholeheartedly encourage DIYers to build their own horns using fiberglass, plaster or wood. It's a lot of fun and brings great pride to the owner. They aren't hard to do, just time consuming. My suggestion would be to copy the H290 and just round-over the mouth. Make it larger to allow for the radius of the roundover and keep the rest the same. That makes an excellent horn that is suitable for use outside a baffle. Good directivity and nice smooth sound.