Bliesma T34 Tweeter

It has to be a gentle curve to work with the tweeter so to have any depth it ends up being very wide.

I made a small waveguide that fits the same diameter of the face plate for someone else who made it. It is better than no waveguide but the native cabinet edge diffraction needs to be accounted for much more with such a small waveguide.

https://www.diyaudio.com/community/...uides-for-cnc-3d-printing.318190/post-7171815

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When I said "the deeper the dome, the better", I actually meant "the wider radiation pattern". It wasn't the right choice of words, as it doesn't have to be better in the end...

But if that's what you want, look for the deepest dome you can get. That will work even without any additional phasing plugs.
 
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It has been some time since I played with this, but I wouldn't expect T34A to work optimally in that waveguide, which was really optimized for the T34B.
T34B has a 7mm deep dome, while T34A is 10.5 mm, allowing for even a wider coverage, so the waveguide should also be a bit different (shallower, basically).

- It's possbile to simulate this easily (including an enclosure) with the tools I've been working on: https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7353694 and either ABEC or AKABAK.

Interestingly, the smaller domes don't seem to have any advantage here.
I really look forward to when I find time to get into these simulations ... at the moment I only have to admire your great work with these simulations! (y)