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ADVANCED -TRANSITION HORNS
 by Marcel Batík

High-performance devices for sound reproduction
DIY kits



ATH Gen2
/ Long Adapters 		A460D Tritonia
TwinRay Opus12



All kits for 3D printing via Cults


Work on horns:
[1]OS-SE Waveguide (pdf)
Novel profile formula for baffle-mounted horns, 2020.
[2]R-OSSE Acoustic Waveguide (pdf)
New parametric formula for low-diffraction, free-standing horns, 2022.
[3]Spherical Wave Forming (pdf)
Apparatus for flat-to-spherical wavefront transformation for constant directivity, 2021.
[4]Extended-Throat Waveguides
Technical Note, 2023.
[5]EXAR Waveguides - Segmentizing a horn
Analytic method of separation of axisymmetric horns into segments, 2024.

Interactive waveguide formulas in Desmos calculator: OSSE | R-OSSE




Associated diyAudio threads: Theory & Design | Practicalities


Update History





ATH software tool (zip package, the latest release, free for non-commercial use)
User Guide

Note: As the project grew, there are many features undocumented in the User Guide.
The only place where to find them documeted is the diyAudio thread.