can't cheat physics...as to hearing 15k at my age it would need to be loud!! and even when i was younger i never deluded myself into thinking that hearing that high was useful because all that happening there is little more than harmonic spectra.Sure. It's just seems to hold true no matter what we do.
External Shaping Plug, convert flat wavefront to spherical.
See link few posts back, by mabat https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7087129
See link few posts back, by mabat https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7087129
For those willing to print it and try, here's a modified ST260. This outer shape is actually the direct result of the formulas used. I have also a version with a truly round (flat) mouth but this performs better so I left it as it is.
STL for download: https://at-horns.eu/ext/ST260-BLD-mres.zip
STL for download: https://at-horns.eu/ext/ST260-BLD-mres.zip
It can't be narrower unless made considerably larger. That's not an option for a 10" device.Have you tried how much vertical could be narrowed?
This is probably as good as it gets.
I have absolutely no idea what it will do but I'm pretty sceptical - ABEC project attached.
BTW, all these shapes are composed of nothing but R-OSSE profiles - quite powerful tool, all simple formulas.
BTW, all these shapes are composed of nothing but R-OSSE profiles - quite powerful tool, all simple formulas.
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