Ath4 is a freeware acoustic horn shape generator. Constant directivity horns of various shapes were never so easy to design and test. Create your own horn model and make a BEM analysis with ABEC. Ath4 will prepare all the files necessary with just a few keystrokes.

Link to diyAudio thread
Download current release: Ath4 4.3.4
Download manual: Ath4 User Guide

See the changelog

Marcel Batík

Last update: 6/11/2019