Exactly what I'm trying to do. 12 or 15 inch woofer horn from 100 hz. to 1.5k hz. Can you guys keep me posted. I don't know enough about the whole horn thing and would like some help with plans. If you come up with something in the near future please mail me your findings. I kind of need sketches. You know what I mean. I don't mind paying for proper info either. I'll be listening to you guys. Great thoughts. Ron roncodev@hotmail.com